Home / 15,288.98-21,089.84-9,614.75

Finding the Fourth Proportional to 15,288.98, 21,089.84 and 9,614.75

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Solution

The fourth proportional to 15,288.98, 21,089.84 and 9,614.75 is: 13,262.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288.98 : 21,089.84 = 9,614.75 : x
  2. Step 2: Convert to fraction form
    15,288.98/21,089.84 = 9,614.75/x
  3. Step 3: Cross multiply
    15,288.98x = 21,089.84 × 9,614.75
  4. Step 4: Simplify right side
    15,288.98x = 202,773,385.62
  5. Step 5: Solve for x
    x = 202,773,385.62/15,288.98
  6. Step 6: Final answer
    x = 13,262.72

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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.