Home / 16,781.95-23,157.30-9,707.05

Finding the Fourth Proportional to 16,781.95, 23,157.30 and 9,707.05

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Solution

The fourth proportional to 16,781.95, 23,157.30 and 9,707.05 is: 13,394.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.95 : 23,157.30 = 9,707.05 : x
  2. Step 2: Convert to fraction form
    16,781.95/23,157.30 = 9,707.05/x
  3. Step 3: Cross multiply
    16,781.95x = 23,157.30 × 9,707.05
  4. Step 4: Simplify right side
    16,781.95x = 224,789,079.71
  5. Step 5: Solve for x
    x = 224,789,079.71/16,781.95
  6. Step 6: Final answer
    x = 13,394.69

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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.