Home / 18,465.45-27,691.70-5,314.29

Finding the Fourth Proportional to 18,465.45, 27,691.70 and 5,314.29

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Solution

The fourth proportional to 18,465.45, 27,691.70 and 5,314.29 is: 7,969.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.45 : 27,691.70 = 5,314.29 : x
  2. Step 2: Convert to fraction form
    18,465.45/27,691.70 = 5,314.29/x
  3. Step 3: Cross multiply
    18,465.45x = 27,691.70 × 5,314.29
  4. Step 4: Simplify right side
    18,465.45x = 147,161,697.82
  5. Step 5: Solve for x
    x = 147,161,697.82/18,465.45
  6. Step 6: Final answer
    x = 7,969.57

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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.