Home / 10,339.24-15,511.01-5,407.54

Finding the Fourth Proportional to 10,339.24, 15,511.01 and 5,407.54

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Solution

The fourth proportional to 10,339.24, 15,511.01 and 5,407.54 is: 8,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,339.24 : 15,511.01 = 5,407.54 : x
  2. Step 2: Convert to fraction form
    10,339.24/15,511.01 = 5,407.54/x
  3. Step 3: Cross multiply
    10,339.24x = 15,511.01 × 5,407.54
  4. Step 4: Simplify right side
    10,339.24x = 83,876,407.02
  5. Step 5: Solve for x
    x = 83,876,407.02/10,339.24
  6. Step 6: Final answer
    x = 8,112.43

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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.