Home / 15,036.49-20,752.55-8,661.84

Finding the Fourth Proportional to 15,036.49, 20,752.55 and 8,661.84

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Solution

The fourth proportional to 15,036.49, 20,752.55 and 8,661.84 is: 11,954.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036.49 : 20,752.55 = 8,661.84 : x
  2. Step 2: Convert to fraction form
    15,036.49/20,752.55 = 8,661.84/x
  3. Step 3: Cross multiply
    15,036.49x = 20,752.55 × 8,661.84
  4. Step 4: Simplify right side
    15,036.49x = 179,755,289.35
  5. Step 5: Solve for x
    x = 179,755,289.35/15,036.49
  6. Step 6: Final answer
    x = 11,954.61

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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.