Home / 12,373.12-18,534.94-7,440.06

Finding the Fourth Proportional to 12,373.12, 18,534.94 and 7,440.06

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Solution

The fourth proportional to 12,373.12, 18,534.94 and 7,440.06 is: 11,145.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,373.12 : 18,534.94 = 7,440.06 : x
  2. Step 2: Convert to fraction form
    12,373.12/18,534.94 = 7,440.06/x
  3. Step 3: Cross multiply
    12,373.12x = 18,534.94 × 7,440.06
  4. Step 4: Simplify right side
    12,373.12x = 137,901,065.70
  5. Step 5: Solve for x
    x = 137,901,065.70/12,373.12
  6. Step 6: Final answer
    x = 11,145.21

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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.