Home / 10,360.19-15,544.87-5,428.65

Finding the Fourth Proportional to 10,360.19, 15,544.87 and 5,428.65

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Solution

The fourth proportional to 10,360.19, 15,544.87 and 5,428.65 is: 8,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.19 : 15,544.87 = 5,428.65 : x
  2. Step 2: Convert to fraction form
    10,360.19/15,544.87 = 5,428.65/x
  3. Step 3: Cross multiply
    10,360.19x = 15,544.87 × 5,428.65
  4. Step 4: Simplify right side
    10,360.19x = 84,387,733.78
  5. Step 5: Solve for x
    x = 84,387,733.78/10,360.19
  6. Step 6: Final answer
    x = 8,145.39

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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.