Home / 7,387.20-10,173.60-7,225.92

Finding the Fourth Proportional to 7,387.20, 10,173.60 and 7,225.92

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Solution

The fourth proportional to 7,387.20, 10,173.60 and 7,225.92 is: 9,951.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.20 : 10,173.60 = 7,225.92 : x
  2. Step 2: Convert to fraction form
    7,387.20/10,173.60 = 7,225.92/x
  3. Step 3: Cross multiply
    7,387.20x = 10,173.60 × 7,225.92
  4. Step 4: Simplify right side
    7,387.20x = 73,513,619.71
  5. Step 5: Solve for x
    x = 73,513,619.71/7,387.20
  6. Step 6: Final answer
    x = 9,951.49

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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.