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Finding the Fourth Proportional to 10,608, 14,639.12 and 6,631.45

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Solution

The fourth proportional to 10,608, 14,639.12 and 6,631.45 is: 9,151.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,608 : 14,639.12 = 6,631.45 : x
  2. Step 2: Convert to fraction form
    10,608/14,639.12 = 6,631.45/x
  3. Step 3: Cross multiply
    10,608x = 14,639.12 × 6,631.45
  4. Step 4: Simplify right side
    10,608x = 97,078,592.32
  5. Step 5: Solve for x
    x = 97,078,592.32/10,608
  6. Step 6: Final answer
    x = 9,151.45

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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.