Home / 10,957.06-15,120.69-5,989.06

Finding the Fourth Proportional to 10,957.06, 15,120.69 and 5,989.06

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Solution

The fourth proportional to 10,957.06, 15,120.69 and 5,989.06 is: 8,264.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.06 : 15,120.69 = 5,989.06 : x
  2. Step 2: Convert to fraction form
    10,957.06/15,120.69 = 5,989.06/x
  3. Step 3: Cross multiply
    10,957.06x = 15,120.69 × 5,989.06
  4. Step 4: Simplify right side
    10,957.06x = 90,558,719.65
  5. Step 5: Solve for x
    x = 90,558,719.65/10,957.06
  6. Step 6: Final answer
    x = 8,264.87

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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.