Home / 10,247.40-15,367.05-3,670.20

Finding the Fourth Proportional to 10,247.40, 15,367.05 and 3,670.20

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Solution

The fourth proportional to 10,247.40, 15,367.05 and 3,670.20 is: 5,503.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,247.40 : 15,367.05 = 3,670.20 : x
  2. Step 2: Convert to fraction form
    10,247.40/15,367.05 = 3,670.20/x
  3. Step 3: Cross multiply
    10,247.40x = 15,367.05 × 3,670.20
  4. Step 4: Simplify right side
    10,247.40x = 56,400,146.91
  5. Step 5: Solve for x
    x = 56,400,146.91/10,247.40
  6. Step 6: Final answer
    x = 5,503.85

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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.