Home / 10,620.59-15,929.86-3,225.12

Finding the Fourth Proportional to 10,620.59, 15,929.86 and 3,225.12

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Solution

The fourth proportional to 10,620.59, 15,929.86 and 3,225.12 is: 4,837.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.59 : 15,929.86 = 3,225.12 : x
  2. Step 2: Convert to fraction form
    10,620.59/15,929.86 = 3,225.12/x
  3. Step 3: Cross multiply
    10,620.59x = 15,929.86 × 3,225.12
  4. Step 4: Simplify right side
    10,620.59x = 51,375,614.31
  5. Step 5: Solve for x
    x = 51,375,614.31/10,620.59
  6. Step 6: Final answer
    x = 4,837.36

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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.