Home / 16,985.62-23,439.11-9,431.49

Finding the Fourth Proportional to 16,985.62, 23,439.11 and 9,431.49

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Solution

The fourth proportional to 16,985.62, 23,439.11 and 9,431.49 is: 13,014.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,985.62 : 23,439.11 = 9,431.49 : x
  2. Step 2: Convert to fraction form
    16,985.62/23,439.11 = 9,431.49/x
  3. Step 3: Cross multiply
    16,985.62x = 23,439.11 × 9,431.49
  4. Step 4: Simplify right side
    16,985.62x = 221,065,731.57
  5. Step 5: Solve for x
    x = 221,065,731.57/16,985.62
  6. Step 6: Final answer
    x = 13,014.88

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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.