Home / 11,340.37-15,641.20-7,984.14

Finding the Fourth Proportional to 11,340.37, 15,641.20 and 7,984.14

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Solution

The fourth proportional to 11,340.37, 15,641.20 and 7,984.14 is: 11,012.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.37 : 15,641.20 = 7,984.14 : x
  2. Step 2: Convert to fraction form
    11,340.37/15,641.20 = 7,984.14/x
  3. Step 3: Cross multiply
    11,340.37x = 15,641.20 × 7,984.14
  4. Step 4: Simplify right side
    11,340.37x = 124,881,530.57
  5. Step 5: Solve for x
    x = 124,881,530.57/11,340.37
  6. Step 6: Final answer
    x = 11,012.12

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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.