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Finding the Fourth Proportional to 8,746.33, 12,077.48 and 7,499.74

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Solution

The fourth proportional to 8,746.33, 12,077.48 and 7,499.74 is: 10,356.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,746.33 : 12,077.48 = 7,499.74 : x
  2. Step 2: Convert to fraction form
    8,746.33/12,077.48 = 7,499.74/x
  3. Step 3: Cross multiply
    8,746.33x = 12,077.48 × 7,499.74
  4. Step 4: Simplify right side
    8,746.33x = 90,577,949.96
  5. Step 5: Solve for x
    x = 90,577,949.96/8,746.33
  6. Step 6: Final answer
    x = 10,356.11

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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.