Home / 10,886.64-15,023.56-6,170.92

Finding the Fourth Proportional to 10,886.64, 15,023.56 and 6,170.92

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Solution

The fourth proportional to 10,886.64, 15,023.56 and 6,170.92 is: 8,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.64 : 15,023.56 = 6,170.92 : x
  2. Step 2: Convert to fraction form
    10,886.64/15,023.56 = 6,170.92/x
  3. Step 3: Cross multiply
    10,886.64x = 15,023.56 × 6,170.92
  4. Step 4: Simplify right side
    10,886.64x = 92,709,186.88
  5. Step 5: Solve for x
    x = 92,709,186.88/10,886.64
  6. Step 6: Final answer
    x = 8,515.87

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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.