Home / 13,134.28-18,126.90-9,595.72

Finding the Fourth Proportional to 13,134.28, 18,126.90 and 9,595.72

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Solution

The fourth proportional to 13,134.28, 18,126.90 and 9,595.72 is: 13,243.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.28 : 18,126.90 = 9,595.72 : x
  2. Step 2: Convert to fraction form
    13,134.28/18,126.90 = 9,595.72/x
  3. Step 3: Cross multiply
    13,134.28x = 18,126.90 × 9,595.72
  4. Step 4: Simplify right side
    13,134.28x = 173,940,656.87
  5. Step 5: Solve for x
    x = 173,940,656.87/13,134.28
  6. Step 6: Final answer
    x = 13,243.26

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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.