Home / 16,391.12-22,614.43-9,679.01

Finding the Fourth Proportional to 16,391.12, 22,614.43 and 9,679.01

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Solution

The fourth proportional to 16,391.12, 22,614.43 and 9,679.01 is: 13,353.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,391.12 : 22,614.43 = 9,679.01 : x
  2. Step 2: Convert to fraction form
    16,391.12/22,614.43 = 9,679.01/x
  3. Step 3: Cross multiply
    16,391.12x = 22,614.43 × 9,679.01
  4. Step 4: Simplify right side
    16,391.12x = 218,885,294.11
  5. Step 5: Solve for x
    x = 218,885,294.11/16,391.12
  6. Step 6: Final answer
    x = 13,353.89

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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.