Home / 8,490.38-11,715.52-4,713.26

Finding the Fourth Proportional to 8,490.38, 11,715.52 and 4,713.26

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Solution

The fourth proportional to 8,490.38, 11,715.52 and 4,713.26 is: 6,503.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.38 : 11,715.52 = 4,713.26 : x
  2. Step 2: Convert to fraction form
    8,490.38/11,715.52 = 4,713.26/x
  3. Step 3: Cross multiply
    8,490.38x = 11,715.52 × 4,713.26
  4. Step 4: Simplify right side
    8,490.38x = 55,218,291.80
  5. Step 5: Solve for x
    x = 55,218,291.80/8,490.38
  6. Step 6: Final answer
    x = 6,503.63

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Half scale
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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.