Home / 10,480.46-15,728.58-5,551.20

Finding the Fourth Proportional to 10,480.46, 15,728.58 and 5,551.20

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Solution

The fourth proportional to 10,480.46, 15,728.58 and 5,551.20 is: 8,330.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,480.46 : 15,728.58 = 5,551.20 : x
  2. Step 2: Convert to fraction form
    10,480.46/15,728.58 = 5,551.20/x
  3. Step 3: Cross multiply
    10,480.46x = 15,728.58 × 5,551.20
  4. Step 4: Simplify right side
    10,480.46x = 87,312,493.30
  5. Step 5: Solve for x
    x = 87,312,493.30/10,480.46
  6. Step 6: Final answer
    x = 8,330.98

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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.