Home / 13,360.20-18,436.98-7,391.88

Finding the Fourth Proportional to 13,360.20, 18,436.98 and 7,391.88

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Solution

The fourth proportional to 13,360.20, 18,436.98 and 7,391.88 is: 10,200.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.20 : 18,436.98 = 7,391.88 : x
  2. Step 2: Convert to fraction form
    13,360.20/18,436.98 = 7,391.88/x
  3. Step 3: Cross multiply
    13,360.20x = 18,436.98 × 7,391.88
  4. Step 4: Simplify right side
    13,360.20x = 136,283,943.72
  5. Step 5: Solve for x
    x = 136,283,943.72/13,360.20
  6. Step 6: Final answer
    x = 10,200.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.