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Finding the Fourth Proportional to 8,719.71, 12,033.03 and 4,740.79

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Solution

The fourth proportional to 8,719.71, 12,033.03 and 4,740.79 is: 6,542.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.71 : 12,033.03 = 4,740.79 : x
  2. Step 2: Convert to fraction form
    8,719.71/12,033.03 = 4,740.79/x
  3. Step 3: Cross multiply
    8,719.71x = 12,033.03 × 4,740.79
  4. Step 4: Simplify right side
    8,719.71x = 57,046,038.21
  5. Step 5: Solve for x
    x = 57,046,038.21/8,719.71
  6. Step 6: Final answer
    x = 6,542.19

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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.