Home / 12,515.60-17,270.28-6,926

Finding the Fourth Proportional to 12,515.60, 17,270.28 and 6,926

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Solution

The fourth proportional to 12,515.60, 17,270.28 and 6,926 is: 9,557.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.60 : 17,270.28 = 6,926 : x
  2. Step 2: Convert to fraction form
    12,515.60/17,270.28 = 6,926/x
  3. Step 3: Cross multiply
    12,515.60x = 17,270.28 × 6,926
  4. Step 4: Simplify right side
    12,515.60x = 119,613,959.28
  5. Step 5: Solve for x
    x = 119,613,959.28/12,515.60
  6. Step 6: Final answer
    x = 9,557.19

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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.