Home / 8,868.12-12,237.78-4,889.15

Finding the Fourth Proportional to 8,868.12, 12,237.78 and 4,889.15

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Solution

The fourth proportional to 8,868.12, 12,237.78 and 4,889.15 is: 6,746.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.12 : 12,237.78 = 4,889.15 : x
  2. Step 2: Convert to fraction form
    8,868.12/12,237.78 = 4,889.15/x
  3. Step 3: Cross multiply
    8,868.12x = 12,237.78 × 4,889.15
  4. Step 4: Simplify right side
    8,868.12x = 59,832,342.09
  5. Step 5: Solve for x
    x = 59,832,342.09/8,868.12
  6. Step 6: Final answer
    x = 6,746.90

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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.