Home / 12,483.52-17,230.56-7,765.12

Finding the Fourth Proportional to 12,483.52, 17,230.56 and 7,765.12

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Solution

The fourth proportional to 12,483.52, 17,230.56 and 7,765.12 is: 10,717.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,483.52 : 17,230.56 = 7,765.12 : x
  2. Step 2: Convert to fraction form
    12,483.52/17,230.56 = 7,765.12/x
  3. Step 3: Cross multiply
    12,483.52x = 17,230.56 × 7,765.12
  4. Step 4: Simplify right side
    12,483.52x = 133,797,366.07
  5. Step 5: Solve for x
    x = 133,797,366.07/12,483.52
  6. Step 6: Final answer
    x = 10,717.92

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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.