Home / 13,279.61-18,325.43-7,536.92

Finding the Fourth Proportional to 13,279.61, 18,325.43 and 7,536.92

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Solution

The fourth proportional to 13,279.61, 18,325.43 and 7,536.92 is: 10,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.61 : 18,325.43 = 7,536.92 : x
  2. Step 2: Convert to fraction form
    13,279.61/18,325.43 = 7,536.92/x
  3. Step 3: Cross multiply
    13,279.61x = 18,325.43 × 7,536.92
  4. Step 4: Simplify right side
    13,279.61x = 138,117,170.56
  5. Step 5: Solve for x
    x = 138,117,170.56/13,279.61
  6. Step 6: Final answer
    x = 10,400.70

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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.