Home / 16,020.81-22,103.88-9,305.13

Finding the Fourth Proportional to 16,020.81, 22,103.88 and 9,305.13

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Solution

The fourth proportional to 16,020.81, 22,103.88 and 9,305.13 is: 12,838.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,020.81 : 22,103.88 = 9,305.13 : x
  2. Step 2: Convert to fraction form
    16,020.81/22,103.88 = 9,305.13/x
  3. Step 3: Cross multiply
    16,020.81x = 22,103.88 × 9,305.13
  4. Step 4: Simplify right side
    16,020.81x = 205,679,476.90
  5. Step 5: Solve for x
    x = 205,679,476.90/16,020.81
  6. Step 6: Final answer
    x = 12,838.27

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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.