Home / 12,475.96-17,223.06-7,761.76

Finding the Fourth Proportional to 12,475.96, 17,223.06 and 7,761.76

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Solution

The fourth proportional to 12,475.96, 17,223.06 and 7,761.76 is: 10,715.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.96 : 17,223.06 = 7,761.76 : x
  2. Step 2: Convert to fraction form
    12,475.96/17,223.06 = 7,761.76/x
  3. Step 3: Cross multiply
    12,475.96x = 17,223.06 × 7,761.76
  4. Step 4: Simplify right side
    12,475.96x = 133,681,258.19
  5. Step 5: Solve for x
    x = 133,681,258.19/12,475.96
  6. Step 6: Final answer
    x = 10,715.11

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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.