Home / 18,818.22-25,969.72-10,320.70

Finding the Fourth Proportional to 18,818.22, 25,969.72 and 10,320.70

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Solution

The fourth proportional to 18,818.22, 25,969.72 and 10,320.70 is: 14,242.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.22 : 25,969.72 = 10,320.70 : x
  2. Step 2: Convert to fraction form
    18,818.22/25,969.72 = 10,320.70/x
  3. Step 3: Cross multiply
    18,818.22x = 25,969.72 × 10,320.70
  4. Step 4: Simplify right side
    18,818.22x = 268,025,598.48
  5. Step 5: Solve for x
    x = 268,025,598.48/18,818.22
  6. Step 6: Final answer
    x = 14,242.88

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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.