Home / 12,631.44-17,431.26-7,254.76

Finding the Fourth Proportional to 12,631.44, 17,431.26 and 7,254.76

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Solution

The fourth proportional to 12,631.44, 17,431.26 and 7,254.76 is: 10,011.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.44 : 17,431.26 = 7,254.76 : x
  2. Step 2: Convert to fraction form
    12,631.44/17,431.26 = 7,254.76/x
  3. Step 3: Cross multiply
    12,631.44x = 17,431.26 × 7,254.76
  4. Step 4: Simplify right side
    12,631.44x = 126,459,607.80
  5. Step 5: Solve for x
    x = 126,459,607.80/12,631.44
  6. Step 6: Final answer
    x = 10,011.50

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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.