Home / 12,471.08-17,209.55-6,805.69

Finding the Fourth Proportional to 12,471.08, 17,209.55 and 6,805.69

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Solution

The fourth proportional to 12,471.08, 17,209.55 and 6,805.69 is: 9,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471.08 : 17,209.55 = 6,805.69 : x
  2. Step 2: Convert to fraction form
    12,471.08/17,209.55 = 6,805.69/x
  3. Step 3: Cross multiply
    12,471.08x = 17,209.55 × 6,805.69
  4. Step 4: Simplify right side
    12,471.08x = 117,122,776.29
  5. Step 5: Solve for x
    x = 117,122,776.29/12,471.08
  6. Step 6: Final answer
    x = 9,391.55

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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.