Home / 12,426.39-17,154.77-9,587.40

Finding the Fourth Proportional to 12,426.39, 17,154.77 and 9,587.40

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Solution

The fourth proportional to 12,426.39, 17,154.77 and 9,587.40 is: 13,235.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.39 : 17,154.77 = 9,587.40 : x
  2. Step 2: Convert to fraction form
    12,426.39/17,154.77 = 9,587.40/x
  3. Step 3: Cross multiply
    12,426.39x = 17,154.77 × 9,587.40
  4. Step 4: Simplify right side
    12,426.39x = 164,469,593.96
  5. Step 5: Solve for x
    x = 164,469,593.96/12,426.39
  6. Step 6: Final answer
    x = 13,235.51

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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.