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Finding the Fourth Proportional to 8,473.66, 12,718.28 and 4,316.63

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Solution

The fourth proportional to 8,473.66, 12,718.28 and 4,316.63 is: 6,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473.66 : 12,718.28 = 4,316.63 : x
  2. Step 2: Convert to fraction form
    8,473.66/12,718.28 = 4,316.63/x
  3. Step 3: Cross multiply
    8,473.66x = 12,718.28 × 4,316.63
  4. Step 4: Simplify right side
    8,473.66x = 54,900,056.20
  5. Step 5: Solve for x
    x = 54,900,056.20/8,473.66
  6. Step 6: Final answer
    x = 6,478.91

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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.