Home / 15,324.69-21,145.52-9,038.31

Finding the Fourth Proportional to 15,324.69, 21,145.52 and 9,038.31

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Solution

The fourth proportional to 15,324.69, 21,145.52 and 9,038.31 is: 12,471.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.69 : 21,145.52 = 9,038.31 : x
  2. Step 2: Convert to fraction form
    15,324.69/21,145.52 = 9,038.31/x
  3. Step 3: Cross multiply
    15,324.69x = 21,145.52 × 9,038.31
  4. Step 4: Simplify right side
    15,324.69x = 191,119,719.68
  5. Step 5: Solve for x
    x = 191,119,719.68/15,324.69
  6. Step 6: Final answer
    x = 12,471.36

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Double scale
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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.