Home / 15,394.19-21,236.45-9,726.21

Finding the Fourth Proportional to 15,394.19, 21,236.45 and 9,726.21

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Solution

The fourth proportional to 15,394.19, 21,236.45 and 9,726.21 is: 13,417.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,394.19 : 21,236.45 = 9,726.21 : x
  2. Step 2: Convert to fraction form
    15,394.19/21,236.45 = 9,726.21/x
  3. Step 3: Cross multiply
    15,394.19x = 21,236.45 × 9,726.21
  4. Step 4: Simplify right side
    15,394.19x = 206,550,123.72
  5. Step 5: Solve for x
    x = 206,550,123.72/15,394.19
  6. Step 6: Final answer
    x = 13,417.41

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Half scale
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Double scale
Find fourth proportional to 15,395.19, 21,237.82 and 9,727.21
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.