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Finding the Fourth Proportional to 8,256.88, 12,368.91 and 6,688.93

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Solution

The fourth proportional to 8,256.88, 12,368.91 and 6,688.93 is: 10,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256.88 : 12,368.91 = 6,688.93 : x
  2. Step 2: Convert to fraction form
    8,256.88/12,368.91 = 6,688.93/x
  3. Step 3: Cross multiply
    8,256.88x = 12,368.91 × 6,688.93
  4. Step 4: Simplify right side
    8,256.88x = 82,734,773.17
  5. Step 5: Solve for x
    x = 82,734,773.17/8,256.88
  6. Step 6: Final answer
    x = 10,020.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.