Home / 18,838.28-25,995.66-10,772.78

Finding the Fourth Proportional to 18,838.28, 25,995.66 and 10,772.78

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Solution

The fourth proportional to 18,838.28, 25,995.66 and 10,772.78 is: 14,865.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.28 : 25,995.66 = 10,772.78 : x
  2. Step 2: Convert to fraction form
    18,838.28/25,995.66 = 10,772.78/x
  3. Step 3: Cross multiply
    18,838.28x = 25,995.66 × 10,772.78
  4. Step 4: Simplify right side
    18,838.28x = 280,045,526.13
  5. Step 5: Solve for x
    x = 280,045,526.13/18,838.28
  6. Step 6: Final answer
    x = 14,865.77

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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.