Home / 15,768.77-21,759.30-9,052.79

Finding the Fourth Proportional to 15,768.77, 21,759.30 and 9,052.79

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Solution

The fourth proportional to 15,768.77, 21,759.30 and 9,052.79 is: 12,491.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,768.77 : 21,759.30 = 9,052.79 : x
  2. Step 2: Convert to fraction form
    15,768.77/21,759.30 = 9,052.79/x
  3. Step 3: Cross multiply
    15,768.77x = 21,759.30 × 9,052.79
  4. Step 4: Simplify right side
    15,768.77x = 196,982,264.65
  5. Step 5: Solve for x
    x = 196,982,264.65/15,768.77
  6. Step 6: Final answer
    x = 12,491.93

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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.