Home / 16,956.12-23,399.65-9,402.55

Finding the Fourth Proportional to 16,956.12, 23,399.65 and 9,402.55

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Solution

The fourth proportional to 16,956.12, 23,399.65 and 9,402.55 is: 12,975.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,956.12 : 23,399.65 = 9,402.55 : x
  2. Step 2: Convert to fraction form
    16,956.12/23,399.65 = 9,402.55/x
  3. Step 3: Cross multiply
    16,956.12x = 23,399.65 × 9,402.55
  4. Step 4: Simplify right side
    16,956.12x = 220,016,297.10
  5. Step 5: Solve for x
    x = 220,016,297.10/16,956.12
  6. Step 6: Final answer
    x = 12,975.63

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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.