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Finding the Fourth Proportional to 8,719.95, 12,033.56 and 4,740.98

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Solution

The fourth proportional to 8,719.95, 12,033.56 and 4,740.98 is: 6,542.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.95 : 12,033.56 = 4,740.98 : x
  2. Step 2: Convert to fraction form
    8,719.95/12,033.56 = 4,740.98/x
  3. Step 3: Cross multiply
    8,719.95x = 12,033.56 × 4,740.98
  4. Step 4: Simplify right side
    8,719.95x = 57,050,886.66
  5. Step 5: Solve for x
    x = 57,050,886.66/8,719.95
  6. Step 6: Final answer
    x = 6,542.57

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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.