Home / 10,119.60-15,160.68-8,486.64

Finding the Fourth Proportional to 10,119.60, 15,160.68 and 8,486.64

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Solution

The fourth proportional to 10,119.60, 15,160.68 and 8,486.64 is: 12,714.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.60 : 15,160.68 = 8,486.64 : x
  2. Step 2: Convert to fraction form
    10,119.60/15,160.68 = 8,486.64/x
  3. Step 3: Cross multiply
    10,119.60x = 15,160.68 × 8,486.64
  4. Step 4: Simplify right side
    10,119.60x = 128,663,233.32
  5. Step 5: Solve for x
    x = 128,663,233.32/10,119.60
  6. Step 6: Final answer
    x = 12,714.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.