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Finding the Fourth Proportional to 8,060.32, 12,007.36 and 7,815.50

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Solution

The fourth proportional to 8,060.32, 12,007.36 and 7,815.50 is: 11,642.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,060.32 : 12,007.36 = 7,815.50 : x
  2. Step 2: Convert to fraction form
    8,060.32/12,007.36 = 7,815.50/x
  3. Step 3: Cross multiply
    8,060.32x = 12,007.36 × 7,815.50
  4. Step 4: Simplify right side
    8,060.32x = 93,843,522.08
  5. Step 5: Solve for x
    x = 93,843,522.08/8,060.32
  6. Step 6: Final answer
    x = 11,642.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.