Home / 8,380.86-11,565.27-4,655.10

Finding the Fourth Proportional to 8,380.86, 11,565.27 and 4,655.10

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Solution

The fourth proportional to 8,380.86, 11,565.27 and 4,655.10 is: 6,423.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.86 : 11,565.27 = 4,655.10 : x
  2. Step 2: Convert to fraction form
    8,380.86/11,565.27 = 4,655.10/x
  3. Step 3: Cross multiply
    8,380.86x = 11,565.27 × 4,655.10
  4. Step 4: Simplify right side
    8,380.86x = 53,837,488.38
  5. Step 5: Solve for x
    x = 53,837,488.38/8,380.86
  6. Step 6: Final answer
    x = 6,423.86

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Half scale
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Double scale
Find fourth proportional to 8,381.86, 11,566.65 and 4,656.10
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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.