Home / 9,511.20-13,125.42-5,319.48

Finding the Fourth Proportional to 9,511.20, 13,125.42 and 5,319.48

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Solution

The fourth proportional to 9,511.20, 13,125.42 and 5,319.48 is: 7,340.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,511.20 : 13,125.42 = 5,319.48 : x
  2. Step 2: Convert to fraction form
    9,511.20/13,125.42 = 5,319.48/x
  3. Step 3: Cross multiply
    9,511.20x = 13,125.42 × 5,319.48
  4. Step 4: Simplify right side
    9,511.20x = 69,820,409.18
  5. Step 5: Solve for x
    x = 69,820,409.18/9,511.20
  6. Step 6: Final answer
    x = 7,340.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.