Home / 8,719.70-12,033.06-4,740.78

Finding the Fourth Proportional to 8,719.70, 12,033.06 and 4,740.78

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Solution

The fourth proportional to 8,719.70, 12,033.06 and 4,740.78 is: 6,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.70 : 12,033.06 = 4,740.78 : x
  2. Step 2: Convert to fraction form
    8,719.70/12,033.06 = 4,740.78/x
  3. Step 3: Cross multiply
    8,719.70x = 12,033.06 × 4,740.78
  4. Step 4: Simplify right side
    8,719.70x = 57,046,066.48
  5. Step 5: Solve for x
    x = 57,046,066.48/8,719.70
  6. Step 6: Final answer
    x = 6,542.21

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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.