Home / 10,280.10-15,416.55-5,348.10

Finding the Fourth Proportional to 10,280.10, 15,416.55 and 5,348.10

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Solution

The fourth proportional to 10,280.10, 15,416.55 and 5,348.10 is: 8,020.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.10 : 15,416.55 = 5,348.10 : x
  2. Step 2: Convert to fraction form
    10,280.10/15,416.55 = 5,348.10/x
  3. Step 3: Cross multiply
    10,280.10x = 15,416.55 × 5,348.10
  4. Step 4: Simplify right side
    10,280.10x = 82,449,251.06
  5. Step 5: Solve for x
    x = 82,449,251.06/10,280.10
  6. Step 6: Final answer
    x = 8,020.28

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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.