Home / 18,639.06-25,722.78-11,567.76

Finding the Fourth Proportional to 18,639.06, 25,722.78 and 11,567.76

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Solution

The fourth proportional to 18,639.06, 25,722.78 and 11,567.76 is: 15,964.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639.06 : 25,722.78 = 11,567.76 : x
  2. Step 2: Convert to fraction form
    18,639.06/25,722.78 = 11,567.76/x
  3. Step 3: Cross multiply
    18,639.06x = 25,722.78 × 11,567.76
  4. Step 4: Simplify right side
    18,639.06x = 297,554,945.57
  5. Step 5: Solve for x
    x = 297,554,945.57/18,639.06
  6. Step 6: Final answer
    x = 15,964.05

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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.