Home / 10,178.12-15,281.36-5,251.30

Finding the Fourth Proportional to 10,178.12, 15,281.36 and 5,251.30

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Solution

The fourth proportional to 10,178.12, 15,281.36 and 5,251.30 is: 7,884.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.12 : 15,281.36 = 5,251.30 : x
  2. Step 2: Convert to fraction form
    10,178.12/15,281.36 = 5,251.30/x
  3. Step 3: Cross multiply
    10,178.12x = 15,281.36 × 5,251.30
  4. Step 4: Simplify right side
    10,178.12x = 80,247,005.77
  5. Step 5: Solve for x
    x = 80,247,005.77/10,178.12
  6. Step 6: Final answer
    x = 7,884.27

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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.