Home / 9,867.45-14,729.19-8,621.87

Finding the Fourth Proportional to 9,867.45, 14,729.19 and 8,621.87

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Solution

The fourth proportional to 9,867.45, 14,729.19 and 8,621.87 is: 12,869.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,867.45 : 14,729.19 = 8,621.87 : x
  2. Step 2: Convert to fraction form
    9,867.45/14,729.19 = 8,621.87/x
  3. Step 3: Cross multiply
    9,867.45x = 14,729.19 × 8,621.87
  4. Step 4: Simplify right side
    9,867.45x = 126,993,161.39
  5. Step 5: Solve for x
    x = 126,993,161.39/9,867.45
  6. Step 6: Final answer
    x = 12,869.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.