Home / 15,324.29-21,141.39-9,657.53

Finding the Fourth Proportional to 15,324.29, 21,141.39 and 9,657.53

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Solution

The fourth proportional to 15,324.29, 21,141.39 and 9,657.53 is: 13,323.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.29 : 21,141.39 = 9,657.53 : x
  2. Step 2: Convert to fraction form
    15,324.29/21,141.39 = 9,657.53/x
  3. Step 3: Cross multiply
    15,324.29x = 21,141.39 × 9,657.53
  4. Step 4: Simplify right side
    15,324.29x = 204,173,454.17
  5. Step 5: Solve for x
    x = 204,173,454.17/15,324.29
  6. Step 6: Final answer
    x = 13,323.52

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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.