Home / 11,120.04-15,339.54-7,079.34

Finding the Fourth Proportional to 11,120.04, 15,339.54 and 7,079.34

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Solution

The fourth proportional to 11,120.04, 15,339.54 and 7,079.34 is: 9,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.04 : 15,339.54 = 7,079.34 : x
  2. Step 2: Convert to fraction form
    11,120.04/15,339.54 = 7,079.34/x
  3. Step 3: Cross multiply
    11,120.04x = 15,339.54 × 7,079.34
  4. Step 4: Simplify right side
    11,120.04x = 108,593,819.10
  5. Step 5: Solve for x
    x = 108,593,819.10/11,120.04
  6. Step 6: Final answer
    x = 9,765.60

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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.