Home / 8,787.48-12,127.26-5,062.68

Finding the Fourth Proportional to 8,787.48, 12,127.26 and 5,062.68

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Solution

The fourth proportional to 8,787.48, 12,127.26 and 5,062.68 is: 6,986.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.48 : 12,127.26 = 5,062.68 : x
  2. Step 2: Convert to fraction form
    8,787.48/12,127.26 = 5,062.68/x
  3. Step 3: Cross multiply
    8,787.48x = 12,127.26 × 5,062.68
  4. Step 4: Simplify right side
    8,787.48x = 61,396,436.66
  5. Step 5: Solve for x
    x = 61,396,436.66/8,787.48
  6. Step 6: Final answer
    x = 6,986.81

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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.