Home / 12,397.45-18,628.46-11,587.58

Finding the Fourth Proportional to 12,397.45, 18,628.46 and 11,587.58

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Solution

The fourth proportional to 12,397.45, 18,628.46 and 11,587.58 is: 17,411.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.45 : 18,628.46 = 11,587.58 : x
  2. Step 2: Convert to fraction form
    12,397.45/18,628.46 = 11,587.58/x
  3. Step 3: Cross multiply
    12,397.45x = 18,628.46 × 11,587.58
  4. Step 4: Simplify right side
    12,397.45x = 215,858,770.53
  5. Step 5: Solve for x
    x = 215,858,770.53/12,397.45
  6. Step 6: Final answer
    x = 17,411.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.