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Finding the Fourth Proportional to 7,934.10, 11,123.10 and 7,934.10

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Solution

The fourth proportional to 7,934.10, 11,123.10 and 7,934.10 is: 11,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934.10 : 11,123.10 = 7,934.10 : x
  2. Step 2: Convert to fraction form
    7,934.10/11,123.10 = 7,934.10/x
  3. Step 3: Cross multiply
    7,934.10x = 11,123.10 × 7,934.10
  4. Step 4: Simplify right side
    7,934.10x = 88,251,787.71
  5. Step 5: Solve for x
    x = 88,251,787.71/7,934.10
  6. Step 6: Final answer
    x = 11,123.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.