Home / 15,454.18-21,326.43-8,740.09

Finding the Fourth Proportional to 15,454.18, 21,326.43 and 8,740.09

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Solution

The fourth proportional to 15,454.18, 21,326.43 and 8,740.09 is: 12,061.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.18 : 21,326.43 = 8,740.09 : x
  2. Step 2: Convert to fraction form
    15,454.18/21,326.43 = 8,740.09/x
  3. Step 3: Cross multiply
    15,454.18x = 21,326.43 × 8,740.09
  4. Step 4: Simplify right side
    15,454.18x = 186,394,917.58
  5. Step 5: Solve for x
    x = 186,394,917.58/15,454.18
  6. Step 6: Final answer
    x = 12,061.13

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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.