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Finding the Fourth Proportional to 8,933.13, 12,316.02 and 7,687.56

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Solution

The fourth proportional to 8,933.13, 12,316.02 and 7,687.56 is: 10,598.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,933.13 : 12,316.02 = 7,687.56 : x
  2. Step 2: Convert to fraction form
    8,933.13/12,316.02 = 7,687.56/x
  3. Step 3: Cross multiply
    8,933.13x = 12,316.02 × 7,687.56
  4. Step 4: Simplify right side
    8,933.13x = 94,680,142.71
  5. Step 5: Solve for x
    x = 94,680,142.71/8,933.13
  6. Step 6: Final answer
    x = 10,598.76

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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.