Home / 8,867.78-12,237.84-4,889.18

Finding the Fourth Proportional to 8,867.78, 12,237.84 and 4,889.18

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Solution

The fourth proportional to 8,867.78, 12,237.84 and 4,889.18 is: 6,747.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.78 : 12,237.84 = 4,889.18 : x
  2. Step 2: Convert to fraction form
    8,867.78/12,237.84 = 4,889.18/x
  3. Step 3: Cross multiply
    8,867.78x = 12,237.84 × 4,889.18
  4. Step 4: Simplify right side
    8,867.78x = 59,833,002.57
  5. Step 5: Solve for x
    x = 59,833,002.57/8,867.78
  6. Step 6: Final answer
    x = 6,747.24

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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.