Home / 10,320.60-15,480.90-2,925.30

Finding the Fourth Proportional to 10,320.60, 15,480.90 and 2,925.30

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Solution

The fourth proportional to 10,320.60, 15,480.90 and 2,925.30 is: 4,387.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.60 : 15,480.90 = 2,925.30 : x
  2. Step 2: Convert to fraction form
    10,320.60/15,480.90 = 2,925.30/x
  3. Step 3: Cross multiply
    10,320.60x = 15,480.90 × 2,925.30
  4. Step 4: Simplify right side
    10,320.60x = 45,286,276.77
  5. Step 5: Solve for x
    x = 45,286,276.77/10,320.60
  6. Step 6: Final answer
    x = 4,387.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.