Home / 12,744.09-17,590.19-7,156.89

Finding the Fourth Proportional to 12,744.09, 17,590.19 and 7,156.89

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Solution

The fourth proportional to 12,744.09, 17,590.19 and 7,156.89 is: 9,878.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,744.09 : 17,590.19 = 7,156.89 : x
  2. Step 2: Convert to fraction form
    12,744.09/17,590.19 = 7,156.89/x
  3. Step 3: Cross multiply
    12,744.09x = 17,590.19 × 7,156.89
  4. Step 4: Simplify right side
    12,744.09x = 125,891,019.12
  5. Step 5: Solve for x
    x = 125,891,019.12/12,744.09
  6. Step 6: Final answer
    x = 9,878.38

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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.