Home / 12,943.68-17,862.57-7,636.56

Finding the Fourth Proportional to 12,943.68, 17,862.57 and 7,636.56

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Solution

The fourth proportional to 12,943.68, 17,862.57 and 7,636.56 is: 10,538.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943.68 : 17,862.57 = 7,636.56 : x
  2. Step 2: Convert to fraction form
    12,943.68/17,862.57 = 7,636.56/x
  3. Step 3: Cross multiply
    12,943.68x = 17,862.57 × 7,636.56
  4. Step 4: Simplify right side
    12,943.68x = 136,408,587.56
  5. Step 5: Solve for x
    x = 136,408,587.56/12,943.68
  6. Step 6: Final answer
    x = 10,538.62

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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.