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Finding the Fourth Proportional to 7,454.70, 10,312.92 and 6,125.76

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Solution

The fourth proportional to 7,454.70, 10,312.92 and 6,125.76 is: 8,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,454.70 : 10,312.92 = 6,125.76 : x
  2. Step 2: Convert to fraction form
    7,454.70/10,312.92 = 6,125.76/x
  3. Step 3: Cross multiply
    7,454.70x = 10,312.92 × 6,125.76
  4. Step 4: Simplify right side
    7,454.70x = 63,174,472.82
  5. Step 5: Solve for x
    x = 63,174,472.82/7,454.70
  6. Step 6: Final answer
    x = 8,474.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.