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Finding the Fourth Proportional to 10.47, 15.70 and 5.96

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Solution

The fourth proportional to 10.47, 15.70 and 5.96 is: 8.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.47 : 15.70 = 5.96 : x
  2. Step 2: Convert to fraction form
    10.47/15.70 = 5.96/x
  3. Step 3: Cross multiply
    10.47x = 15.70 × 5.96
  4. Step 4: Simplify right side
    10.47x = 93.57
  5. Step 5: Solve for x
    x = 93.57/10.47
  6. Step 6: Final answer
    x = 8.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.