Home / 9,687.80-13,366.68-5,910.72

Finding the Fourth Proportional to 9,687.80, 13,366.68 and 5,910.72

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Solution

The fourth proportional to 9,687.80, 13,366.68 and 5,910.72 is: 8,155.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687.80 : 13,366.68 = 5,910.72 : x
  2. Step 2: Convert to fraction form
    9,687.80/13,366.68 = 5,910.72/x
  3. Step 3: Cross multiply
    9,687.80x = 13,366.68 × 5,910.72
  4. Step 4: Simplify right side
    9,687.80x = 79,006,702.81
  5. Step 5: Solve for x
    x = 79,006,702.81/9,687.80
  6. Step 6: Final answer
    x = 8,155.28

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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.