Home / 10,190.05-15,268.45-9,800.87

Finding the Fourth Proportional to 10,190.05, 15,268.45 and 9,800.87

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Solution

The fourth proportional to 10,190.05, 15,268.45 and 9,800.87 is: 14,685.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,190.05 : 15,268.45 = 9,800.87 : x
  2. Step 2: Convert to fraction form
    10,190.05/15,268.45 = 9,800.87/x
  3. Step 3: Cross multiply
    10,190.05x = 15,268.45 × 9,800.87
  4. Step 4: Simplify right side
    10,190.05x = 149,644,139.91
  5. Step 5: Solve for x
    x = 149,644,139.91/10,190.05
  6. Step 6: Final answer
    x = 14,685.31

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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.