Home / 15,043.14-20,760.30-8,329.50

Finding the Fourth Proportional to 15,043.14, 20,760.30 and 8,329.50

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Solution

The fourth proportional to 15,043.14, 20,760.30 and 8,329.50 is: 11,495.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,043.14 : 20,760.30 = 8,329.50 : x
  2. Step 2: Convert to fraction form
    15,043.14/20,760.30 = 8,329.50/x
  3. Step 3: Cross multiply
    15,043.14x = 20,760.30 × 8,329.50
  4. Step 4: Simplify right side
    15,043.14x = 172,922,877.20
  5. Step 5: Solve for x
    x = 172,922,877.20/15,043.14
  6. Step 6: Final answer
    x = 11,495.14

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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.