Home / 10,091.87-15,139.64-4,165.53

Finding the Fourth Proportional to 10,091.87, 15,139.64 and 4,165.53

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Solution

The fourth proportional to 10,091.87, 15,139.64 and 4,165.53 is: 6,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.87 : 15,139.64 = 4,165.53 : x
  2. Step 2: Convert to fraction form
    10,091.87/15,139.64 = 4,165.53/x
  3. Step 3: Cross multiply
    10,091.87x = 15,139.64 × 4,165.53
  4. Step 4: Simplify right side
    10,091.87x = 63,064,578.25
  5. Step 5: Solve for x
    x = 63,064,578.25/10,091.87
  6. Step 6: Final answer
    x = 6,249.05

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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.