Home / 18,720.18-25,838.28-10,767

Finding the Fourth Proportional to 18,720.18, 25,838.28 and 10,767

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Solution

The fourth proportional to 18,720.18, 25,838.28 and 10,767 is: 14,861.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.18 : 25,838.28 = 10,767 : x
  2. Step 2: Convert to fraction form
    18,720.18/25,838.28 = 10,767/x
  3. Step 3: Cross multiply
    18,720.18x = 25,838.28 × 10,767
  4. Step 4: Simplify right side
    18,720.18x = 278,200,760.76
  5. Step 5: Solve for x
    x = 278,200,760.76/18,720.18
  6. Step 6: Final answer
    x = 14,861.01

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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.