Home / 15,281.19-21,086.73-9,314.73

Finding the Fourth Proportional to 15,281.19, 21,086.73 and 9,314.73

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Solution

The fourth proportional to 15,281.19, 21,086.73 and 9,314.73 is: 12,853.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281.19 : 21,086.73 = 9,314.73 : x
  2. Step 2: Convert to fraction form
    15,281.19/21,086.73 = 9,314.73/x
  3. Step 3: Cross multiply
    15,281.19x = 21,086.73 × 9,314.73
  4. Step 4: Simplify right side
    15,281.19x = 196,417,196.53
  5. Step 5: Solve for x
    x = 196,417,196.53/15,281.19
  6. Step 6: Final answer
    x = 12,853.53

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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.