Home / 17,888.78-24,686.62-11,178.30

Finding the Fourth Proportional to 17,888.78, 24,686.62 and 11,178.30

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Solution

The fourth proportional to 17,888.78, 24,686.62 and 11,178.30 is: 15,426.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,888.78 : 24,686.62 = 11,178.30 : x
  2. Step 2: Convert to fraction form
    17,888.78/24,686.62 = 11,178.30/x
  3. Step 3: Cross multiply
    17,888.78x = 24,686.62 × 11,178.30
  4. Step 4: Simplify right side
    17,888.78x = 275,954,444.35
  5. Step 5: Solve for x
    x = 275,954,444.35/17,888.78
  6. Step 6: Final answer
    x = 15,426.12

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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.