Home / 14,079.30-21,117.87-3,690.78

Finding the Fourth Proportional to 14,079.30, 21,117.87 and 3,690.78

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Solution

The fourth proportional to 14,079.30, 21,117.87 and 3,690.78 is: 5,535.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.30 : 21,117.87 = 3,690.78 : x
  2. Step 2: Convert to fraction form
    14,079.30/21,117.87 = 3,690.78/x
  3. Step 3: Cross multiply
    14,079.30x = 21,117.87 × 3,690.78
  4. Step 4: Simplify right side
    14,079.30x = 77,941,412.24
  5. Step 5: Solve for x
    x = 77,941,412.24/14,079.30
  6. Step 6: Final answer
    x = 5,535.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.