Home / 13,529.60-18,658.76-8,494.29

Finding the Fourth Proportional to 13,529.60, 18,658.76 and 8,494.29

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Solution

The fourth proportional to 13,529.60, 18,658.76 and 8,494.29 is: 11,714.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.60 : 18,658.76 = 8,494.29 : x
  2. Step 2: Convert to fraction form
    13,529.60/18,658.76 = 8,494.29/x
  3. Step 3: Cross multiply
    13,529.60x = 18,658.76 × 8,494.29
  4. Step 4: Simplify right side
    13,529.60x = 158,492,918.48
  5. Step 5: Solve for x
    x = 158,492,918.48/13,529.60
  6. Step 6: Final answer
    x = 11,714.53

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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.