Home / 8,320.59-11,482.43-4,543.78

Finding the Fourth Proportional to 8,320.59, 11,482.43 and 4,543.78

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Solution

The fourth proportional to 8,320.59, 11,482.43 and 4,543.78 is: 6,270.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.59 : 11,482.43 = 4,543.78 : x
  2. Step 2: Convert to fraction form
    8,320.59/11,482.43 = 4,543.78/x
  3. Step 3: Cross multiply
    8,320.59x = 11,482.43 × 4,543.78
  4. Step 4: Simplify right side
    8,320.59x = 52,173,613.07
  5. Step 5: Solve for x
    x = 52,173,613.07/8,320.59
  6. Step 6: Final answer
    x = 6,270.43

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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.