Home / 12,396.64-17,110-7,431.52

Finding the Fourth Proportional to 12,396.64, 17,110 and 7,431.52

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Solution

The fourth proportional to 12,396.64, 17,110 and 7,431.52 is: 10,257.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,396.64 : 17,110 = 7,431.52 : x
  2. Step 2: Convert to fraction form
    12,396.64/17,110 = 7,431.52/x
  3. Step 3: Cross multiply
    12,396.64x = 17,110 × 7,431.52
  4. Step 4: Simplify right side
    12,396.64x = 127,153,307.20
  5. Step 5: Solve for x
    x = 127,153,307.20/12,396.64
  6. Step 6: Final answer
    x = 10,257.08

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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.