Home / 18,206.87-25,128.78-10,652.81

Finding the Fourth Proportional to 18,206.87, 25,128.78 and 10,652.81

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Solution

The fourth proportional to 18,206.87, 25,128.78 and 10,652.81 is: 14,702.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,206.87 : 25,128.78 = 10,652.81 : x
  2. Step 2: Convert to fraction form
    18,206.87/25,128.78 = 10,652.81/x
  3. Step 3: Cross multiply
    18,206.87x = 25,128.78 × 10,652.81
  4. Step 4: Simplify right side
    18,206.87x = 267,691,993.23
  5. Step 5: Solve for x
    x = 267,691,993.23/18,206.87
  6. Step 6: Final answer
    x = 14,702.81

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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.