Home / 9,145.38-13,713.15-2,903.70

Finding the Fourth Proportional to 9,145.38, 13,713.15 and 2,903.70

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Solution

The fourth proportional to 9,145.38, 13,713.15 and 2,903.70 is: 4,353.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.38 : 13,713.15 = 2,903.70 : x
  2. Step 2: Convert to fraction form
    9,145.38/13,713.15 = 2,903.70/x
  3. Step 3: Cross multiply
    9,145.38x = 13,713.15 × 2,903.70
  4. Step 4: Simplify right side
    9,145.38x = 39,818,873.66
  5. Step 5: Solve for x
    x = 39,818,873.66/9,145.38
  6. Step 6: Final answer
    x = 4,353.99

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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.