Home / 12,397.43-18,628.35-11,587.54

Finding the Fourth Proportional to 12,397.43, 18,628.35 and 11,587.54

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Solution

The fourth proportional to 12,397.43, 18,628.35 and 11,587.54 is: 17,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.43 : 18,628.35 = 11,587.54 : x
  2. Step 2: Convert to fraction form
    12,397.43/18,628.35 = 11,587.54/x
  3. Step 3: Cross multiply
    12,397.43x = 18,628.35 × 11,587.54
  4. Step 4: Simplify right side
    12,397.43x = 215,856,704.19
  5. Step 5: Solve for x
    x = 215,856,704.19/12,397.43
  6. Step 6: Final answer
    x = 17,411.40

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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.