Home / 12,454.34-17,188.20-9,305.06

Finding the Fourth Proportional to 12,454.34, 17,188.20 and 9,305.06

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Solution

The fourth proportional to 12,454.34, 17,188.20 and 9,305.06 is: 12,841.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.34 : 17,188.20 = 9,305.06 : x
  2. Step 2: Convert to fraction form
    12,454.34/17,188.20 = 9,305.06/x
  3. Step 3: Cross multiply
    12,454.34x = 17,188.20 × 9,305.06
  4. Step 4: Simplify right side
    12,454.34x = 159,937,232.29
  5. Step 5: Solve for x
    x = 159,937,232.29/12,454.34
  6. Step 6: Final answer
    x = 12,841.89

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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.