Home / 9,318.38-12,859.36-5,126.63

Finding the Fourth Proportional to 9,318.38, 12,859.36 and 5,126.63

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Solution

The fourth proportional to 9,318.38, 12,859.36 and 5,126.63 is: 7,074.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.38 : 12,859.36 = 5,126.63 : x
  2. Step 2: Convert to fraction form
    9,318.38/12,859.36 = 5,126.63/x
  3. Step 3: Cross multiply
    9,318.38x = 12,859.36 × 5,126.63
  4. Step 4: Simplify right side
    9,318.38x = 65,925,103.64
  5. Step 5: Solve for x
    x = 65,925,103.64/9,318.38
  6. Step 6: Final answer
    x = 7,074.74

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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.