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Finding the Fourth Proportional to 7,672.34, 10,587.75 and 4,315.17

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Solution

The fourth proportional to 7,672.34, 10,587.75 and 4,315.17 is: 5,954.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.34 : 10,587.75 = 4,315.17 : x
  2. Step 2: Convert to fraction form
    7,672.34/10,587.75 = 4,315.17/x
  3. Step 3: Cross multiply
    7,672.34x = 10,587.75 × 4,315.17
  4. Step 4: Simplify right side
    7,672.34x = 45,687,941.17
  5. Step 5: Solve for x
    x = 45,687,941.17/7,672.34
  6. Step 6: Final answer
    x = 5,954.89

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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.