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Finding the Fourth Proportional to 8,275.48, 12,424.18 and 7,923.74

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Solution

The fourth proportional to 8,275.48, 12,424.18 and 7,923.74 is: 11,896.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.48 : 12,424.18 = 7,923.74 : x
  2. Step 2: Convert to fraction form
    8,275.48/12,424.18 = 7,923.74/x
  3. Step 3: Cross multiply
    8,275.48x = 12,424.18 × 7,923.74
  4. Step 4: Simplify right side
    8,275.48x = 98,445,972.03
  5. Step 5: Solve for x
    x = 98,445,972.03/8,275.48
  6. Step 6: Final answer
    x = 11,896.10

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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.