Home / 18,154.34-25,047.57-10,986.90

Finding the Fourth Proportional to 18,154.34, 25,047.57 and 10,986.90

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Solution

The fourth proportional to 18,154.34, 25,047.57 and 10,986.90 is: 15,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,154.34 : 25,047.57 = 10,986.90 : x
  2. Step 2: Convert to fraction form
    18,154.34/25,047.57 = 10,986.90/x
  3. Step 3: Cross multiply
    18,154.34x = 25,047.57 × 10,986.90
  4. Step 4: Simplify right side
    18,154.34x = 275,195,146.83
  5. Step 5: Solve for x
    x = 275,195,146.83/18,154.34
  6. Step 6: Final answer
    x = 15,158.65

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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.