Home / 10,268.16-15,394.40-8,507.76

Finding the Fourth Proportional to 10,268.16, 15,394.40 and 8,507.76

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Solution

The fourth proportional to 10,268.16, 15,394.40 and 8,507.76 is: 12,755.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,268.16 : 15,394.40 = 8,507.76 : x
  2. Step 2: Convert to fraction form
    10,268.16/15,394.40 = 8,507.76/x
  3. Step 3: Cross multiply
    10,268.16x = 15,394.40 × 8,507.76
  4. Step 4: Simplify right side
    10,268.16x = 130,971,860.54
  5. Step 5: Solve for x
    x = 130,971,860.54/10,268.16
  6. Step 6: Final answer
    x = 12,755.14

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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.