Home / 13,045.46-18,002.59-7,380.11

Finding the Fourth Proportional to 13,045.46, 18,002.59 and 7,380.11

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Solution

The fourth proportional to 13,045.46, 18,002.59 and 7,380.11 is: 10,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.46 : 18,002.59 = 7,380.11 : x
  2. Step 2: Convert to fraction form
    13,045.46/18,002.59 = 7,380.11/x
  3. Step 3: Cross multiply
    13,045.46x = 18,002.59 × 7,380.11
  4. Step 4: Simplify right side
    13,045.46x = 132,861,121.04
  5. Step 5: Solve for x
    x = 132,861,121.04/13,045.46
  6. Step 6: Final answer
    x = 10,184.48

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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.