Home / 8,903.20-12,286.14-5,319.72

Finding the Fourth Proportional to 8,903.20, 12,286.14 and 5,319.72

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Solution

The fourth proportional to 8,903.20, 12,286.14 and 5,319.72 is: 7,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.20 : 12,286.14 = 5,319.72 : x
  2. Step 2: Convert to fraction form
    8,903.20/12,286.14 = 5,319.72/x
  3. Step 3: Cross multiply
    8,903.20x = 12,286.14 × 5,319.72
  4. Step 4: Simplify right side
    8,903.20x = 65,358,824.68
  5. Step 5: Solve for x
    x = 65,358,824.68/8,903.20
  6. Step 6: Final answer
    x = 7,341.05

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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.