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Finding the Fourth Proportional to 10,604.66, 14,645.68 and 9,718.79

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Solution

The fourth proportional to 10,604.66, 14,645.68 and 9,718.79 is: 13,422.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,604.66 : 14,645.68 = 9,718.79 : x
  2. Step 2: Convert to fraction form
    10,604.66/14,645.68 = 9,718.79/x
  3. Step 3: Cross multiply
    10,604.66x = 14,645.68 × 9,718.79
  4. Step 4: Simplify right side
    10,604.66x = 142,338,190.80
  5. Step 5: Solve for x
    x = 142,338,190.80/10,604.66
  6. Step 6: Final answer
    x = 13,422.24

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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.