Home / 10,195.38-15,290.13-2,800.08

Finding the Fourth Proportional to 10,195.38, 15,290.13 and 2,800.08

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Solution

The fourth proportional to 10,195.38, 15,290.13 and 2,800.08 is: 4,199.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.38 : 15,290.13 = 2,800.08 : x
  2. Step 2: Convert to fraction form
    10,195.38/15,290.13 = 2,800.08/x
  3. Step 3: Cross multiply
    10,195.38x = 15,290.13 × 2,800.08
  4. Step 4: Simplify right side
    10,195.38x = 42,813,597.71
  5. Step 5: Solve for x
    x = 42,813,597.71/10,195.38
  6. Step 6: Final answer
    x = 4,199.31

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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.