Home / 12,376.40-17,057.10-9,013.88

Finding the Fourth Proportional to 12,376.40, 17,057.10 and 9,013.88

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Solution

The fourth proportional to 12,376.40, 17,057.10 and 9,013.88 is: 12,422.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.40 : 17,057.10 = 9,013.88 : x
  2. Step 2: Convert to fraction form
    12,376.40/17,057.10 = 9,013.88/x
  3. Step 3: Cross multiply
    12,376.40x = 17,057.10 × 9,013.88
  4. Step 4: Simplify right side
    12,376.40x = 153,750,652.55
  5. Step 5: Solve for x
    x = 153,750,652.55/12,376.40
  6. Step 6: Final answer
    x = 12,422.89

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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.