Home / 15,929.67-21,983.51-8,760.13

Finding the Fourth Proportional to 15,929.67, 21,983.51 and 8,760.13

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Solution

The fourth proportional to 15,929.67, 21,983.51 and 8,760.13 is: 12,089.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,929.67 : 21,983.51 = 8,760.13 : x
  2. Step 2: Convert to fraction form
    15,929.67/21,983.51 = 8,760.13/x
  3. Step 3: Cross multiply
    15,929.67x = 21,983.51 × 8,760.13
  4. Step 4: Simplify right side
    15,929.67x = 192,578,361.66
  5. Step 5: Solve for x
    x = 192,578,361.66/15,929.67
  6. Step 6: Final answer
    x = 12,089.29

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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.