Home / 12,301.20-18,437.40-5,713.50

Finding the Fourth Proportional to 12,301.20, 18,437.40 and 5,713.50

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Solution

The fourth proportional to 12,301.20, 18,437.40 and 5,713.50 is: 8,563.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301.20 : 18,437.40 = 5,713.50 : x
  2. Step 2: Convert to fraction form
    12,301.20/18,437.40 = 5,713.50/x
  3. Step 3: Cross multiply
    12,301.20x = 18,437.40 × 5,713.50
  4. Step 4: Simplify right side
    12,301.20x = 105,342,084.90
  5. Step 5: Solve for x
    x = 105,342,084.90/12,301.20
  6. Step 6: Final answer
    x = 8,563.56

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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.