Home / 15,531.77-23,249.36-9,990.16

Finding the Fourth Proportional to 15,531.77, 23,249.36 and 9,990.16

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Solution

The fourth proportional to 15,531.77, 23,249.36 and 9,990.16 is: 14,954.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,531.77 : 23,249.36 = 9,990.16 : x
  2. Step 2: Convert to fraction form
    15,531.77/23,249.36 = 9,990.16/x
  3. Step 3: Cross multiply
    15,531.77x = 23,249.36 × 9,990.16
  4. Step 4: Simplify right side
    15,531.77x = 232,264,793.15
  5. Step 5: Solve for x
    x = 232,264,793.15/15,531.77
  6. Step 6: Final answer
    x = 14,954.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.