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Finding the Fourth Proportional to 8,246.42, 12,368.24 and 2,980.42

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Solution

The fourth proportional to 8,246.42, 12,368.24 and 2,980.42 is: 4,470.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,246.42 : 12,368.24 = 2,980.42 : x
  2. Step 2: Convert to fraction form
    8,246.42/12,368.24 = 2,980.42/x
  3. Step 3: Cross multiply
    8,246.42x = 12,368.24 × 2,980.42
  4. Step 4: Simplify right side
    8,246.42x = 36,862,549.86
  5. Step 5: Solve for x
    x = 36,862,549.86/8,246.42
  6. Step 6: Final answer
    x = 4,470.13

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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.