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Finding the Fourth Proportional to 10,777.11, 14,868.18 and 7,951.29

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Solution

The fourth proportional to 10,777.11, 14,868.18 and 7,951.29 is: 10,969.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,777.11 : 14,868.18 = 7,951.29 : x
  2. Step 2: Convert to fraction form
    10,777.11/14,868.18 = 7,951.29/x
  3. Step 3: Cross multiply
    10,777.11x = 14,868.18 × 7,951.29
  4. Step 4: Simplify right side
    10,777.11x = 118,221,210.95
  5. Step 5: Solve for x
    x = 118,221,210.95/10,777.11
  6. Step 6: Final answer
    x = 10,969.66

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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.