Home / 15,548.51-21,453.12-9,497.21

Finding the Fourth Proportional to 15,548.51, 21,453.12 and 9,497.21

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Solution

The fourth proportional to 15,548.51, 21,453.12 and 9,497.21 is: 13,103.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.51 : 21,453.12 = 9,497.21 : x
  2. Step 2: Convert to fraction form
    15,548.51/21,453.12 = 9,497.21/x
  3. Step 3: Cross multiply
    15,548.51x = 21,453.12 × 9,497.21
  4. Step 4: Simplify right side
    15,548.51x = 203,744,678.53
  5. Step 5: Solve for x
    x = 203,744,678.53/15,548.51
  6. Step 6: Final answer
    x = 13,103.81

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Half scale
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Double scale
Find fourth proportional to 15,549.51, 21,454.50 and 9,498.21
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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.