Home / 12,341.39-17,013.40-8,798.45

Finding the Fourth Proportional to 12,341.39, 17,013.40 and 8,798.45

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Solution

The fourth proportional to 12,341.39, 17,013.40 and 8,798.45 is: 12,129.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,341.39 : 17,013.40 = 8,798.45 : x
  2. Step 2: Convert to fraction form
    12,341.39/17,013.40 = 8,798.45/x
  3. Step 3: Cross multiply
    12,341.39x = 17,013.40 × 8,798.45
  4. Step 4: Simplify right side
    12,341.39x = 149,691,549.96
  5. Step 5: Solve for x
    x = 149,691,549.96/12,341.39
  6. Step 6: Final answer
    x = 12,129.23

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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.