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Finding the Fourth Proportional to 18,279, 25,225.02 and 9,895.56

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Solution

The fourth proportional to 18,279, 25,225.02 and 9,895.56 is: 13,655.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279 : 25,225.02 = 9,895.56 : x
  2. Step 2: Convert to fraction form
    18,279/25,225.02 = 9,895.56/x
  3. Step 3: Cross multiply
    18,279x = 25,225.02 × 9,895.56
  4. Step 4: Simplify right side
    18,279x = 249,615,698.91
  5. Step 5: Solve for x
    x = 249,615,698.91/18,279
  6. Step 6: Final answer
    x = 13,655.87

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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.