Home / 12,247.52-18,360.90-4,857.20

Finding the Fourth Proportional to 12,247.52, 18,360.90 and 4,857.20

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Solution

The fourth proportional to 12,247.52, 18,360.90 and 4,857.20 is: 7,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,247.52 : 18,360.90 = 4,857.20 : x
  2. Step 2: Convert to fraction form
    12,247.52/18,360.90 = 4,857.20/x
  3. Step 3: Cross multiply
    12,247.52x = 18,360.90 × 4,857.20
  4. Step 4: Simplify right side
    12,247.52x = 89,182,563.48
  5. Step 5: Solve for x
    x = 89,182,563.48/12,247.52
  6. Step 6: Final answer
    x = 7,281.68

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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.