Home / 12,217.39-18,335.32-8,938.94

Finding the Fourth Proportional to 12,217.39, 18,335.32 and 8,938.94

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Solution

The fourth proportional to 12,217.39, 18,335.32 and 8,938.94 is: 13,415.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.39 : 18,335.32 = 8,938.94 : x
  2. Step 2: Convert to fraction form
    12,217.39/18,335.32 = 8,938.94/x
  3. Step 3: Cross multiply
    12,217.39x = 18,335.32 × 8,938.94
  4. Step 4: Simplify right side
    12,217.39x = 163,898,211.34
  5. Step 5: Solve for x
    x = 163,898,211.34/12,217.39
  6. Step 6: Final answer
    x = 13,415.16

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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.