Home / 8,740.50-12,058.47-5,757.90

Finding the Fourth Proportional to 8,740.50, 12,058.47 and 5,757.90

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Solution

The fourth proportional to 8,740.50, 12,058.47 and 5,757.90 is: 7,943.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.50 : 12,058.47 = 5,757.90 : x
  2. Step 2: Convert to fraction form
    8,740.50/12,058.47 = 5,757.90/x
  3. Step 3: Cross multiply
    8,740.50x = 12,058.47 × 5,757.90
  4. Step 4: Simplify right side
    8,740.50x = 69,431,464.41
  5. Step 5: Solve for x
    x = 69,431,464.41/8,740.50
  6. Step 6: Final answer
    x = 7,943.65

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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.