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Finding the Fourth Proportional to 10.60, 14.59 and 9.63

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Solution

The fourth proportional to 10.60, 14.59 and 9.63 is: 13.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.60 : 14.59 = 9.63 : x
  2. Step 2: Convert to fraction form
    10.60/14.59 = 9.63/x
  3. Step 3: Cross multiply
    10.60x = 14.59 × 9.63
  4. Step 4: Simplify right side
    10.60x = 140.50
  5. Step 5: Solve for x
    x = 140.50/10.60
  6. Step 6: Final answer
    x = 13.25

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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.