Home / 7,387.09-10,191.28-4,549.55

Finding the Fourth Proportional to 7,387.09, 10,191.28 and 4,549.55

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Solution

The fourth proportional to 7,387.09, 10,191.28 and 4,549.55 is: 6,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.09 : 10,191.28 = 4,549.55 : x
  2. Step 2: Convert to fraction form
    7,387.09/10,191.28 = 4,549.55/x
  3. Step 3: Cross multiply
    7,387.09x = 10,191.28 × 4,549.55
  4. Step 4: Simplify right side
    7,387.09x = 46,365,737.92
  5. Step 5: Solve for x
    x = 46,365,737.92/7,387.09
  6. Step 6: Final answer
    x = 6,276.59

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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.