Home / 10,976.04-15,133.68-7,621.74

Finding the Fourth Proportional to 10,976.04, 15,133.68 and 7,621.74

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Solution

The fourth proportional to 10,976.04, 15,133.68 and 7,621.74 is: 10,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,976.04 : 15,133.68 = 7,621.74 : x
  2. Step 2: Convert to fraction form
    10,976.04/15,133.68 = 7,621.74/x
  3. Step 3: Cross multiply
    10,976.04x = 15,133.68 × 7,621.74
  4. Step 4: Simplify right side
    10,976.04x = 115,344,974.20
  5. Step 5: Solve for x
    x = 115,344,974.20/10,976.04
  6. Step 6: Final answer
    x = 10,508.80

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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.