Home / 16,656.81-22,986-9,103.15

Finding the Fourth Proportional to 16,656.81, 22,986 and 9,103.15

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Solution

The fourth proportional to 16,656.81, 22,986 and 9,103.15 is: 12,562.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,656.81 : 22,986 = 9,103.15 : x
  2. Step 2: Convert to fraction form
    16,656.81/22,986 = 9,103.15/x
  3. Step 3: Cross multiply
    16,656.81x = 22,986 × 9,103.15
  4. Step 4: Simplify right side
    16,656.81x = 209,245,005.90
  5. Step 5: Solve for x
    x = 209,245,005.90/16,656.81
  6. Step 6: Final answer
    x = 12,562.13

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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.