Home / 15,145.20-20,910.69-9,482.27

Finding the Fourth Proportional to 15,145.20, 20,910.69 and 9,482.27

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Solution

The fourth proportional to 15,145.20, 20,910.69 and 9,482.27 is: 13,091.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.20 : 20,910.69 = 9,482.27 : x
  2. Step 2: Convert to fraction form
    15,145.20/20,910.69 = 9,482.27/x
  3. Step 3: Cross multiply
    15,145.20x = 20,910.69 × 9,482.27
  4. Step 4: Simplify right side
    15,145.20x = 198,280,703.91
  5. Step 5: Solve for x
    x = 198,280,703.91/15,145.20
  6. Step 6: Final answer
    x = 13,091.98

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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.