Home / 9,909.52-13,675.40-5,718

Finding the Fourth Proportional to 9,909.52, 13,675.40 and 5,718

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Solution

The fourth proportional to 9,909.52, 13,675.40 and 5,718 is: 7,890.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,909.52 : 13,675.40 = 5,718 : x
  2. Step 2: Convert to fraction form
    9,909.52/13,675.40 = 5,718/x
  3. Step 3: Cross multiply
    9,909.52x = 13,675.40 × 5,718
  4. Step 4: Simplify right side
    9,909.52x = 78,195,937.20
  5. Step 5: Solve for x
    x = 78,195,937.20/9,909.52
  6. Step 6: Final answer
    x = 7,890.99

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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.