Home / 15,732.79-21,710.36-9,016.99

Finding the Fourth Proportional to 15,732.79, 21,710.36 and 9,016.99

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Solution

The fourth proportional to 15,732.79, 21,710.36 and 9,016.99 is: 12,442.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,732.79 : 21,710.36 = 9,016.99 : x
  2. Step 2: Convert to fraction form
    15,732.79/21,710.36 = 9,016.99/x
  3. Step 3: Cross multiply
    15,732.79x = 21,710.36 × 9,016.99
  4. Step 4: Simplify right side
    15,732.79x = 195,762,053.93
  5. Step 5: Solve for x
    x = 195,762,053.93/15,732.79
  6. Step 6: Final answer
    x = 12,442.93

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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.