Home / 12,433.55-18,718.39-11,344.91

Finding the Fourth Proportional to 12,433.55, 18,718.39 and 11,344.91

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Solution

The fourth proportional to 12,433.55, 18,718.39 and 11,344.91 is: 17,079.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,433.55 : 18,718.39 = 11,344.91 : x
  2. Step 2: Convert to fraction form
    12,433.55/18,718.39 = 11,344.91/x
  3. Step 3: Cross multiply
    12,433.55x = 18,718.39 × 11,344.91
  4. Step 4: Simplify right side
    12,433.55x = 212,358,449.89
  5. Step 5: Solve for x
    x = 212,358,449.89/12,433.55
  6. Step 6: Final answer
    x = 17,079.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.