Home / 15,729.84-23,619.84-9,160.80

Finding the Fourth Proportional to 15,729.84, 23,619.84 and 9,160.80

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Solution

The fourth proportional to 15,729.84, 23,619.84 and 9,160.80 is: 13,755.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,729.84 : 23,619.84 = 9,160.80 : x
  2. Step 2: Convert to fraction form
    15,729.84/23,619.84 = 9,160.80/x
  3. Step 3: Cross multiply
    15,729.84x = 23,619.84 × 9,160.80
  4. Step 4: Simplify right side
    15,729.84x = 216,376,630.27
  5. Step 5: Solve for x
    x = 216,376,630.27/15,729.84
  6. Step 6: Final answer
    x = 13,755.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.