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Finding the Fourth Proportional to 18,277.69, 25,222.69 and 10,320.65

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Solution

The fourth proportional to 18,277.69, 25,222.69 and 10,320.65 is: 14,242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,277.69 : 25,222.69 = 10,320.65 : x
  2. Step 2: Convert to fraction form
    18,277.69/25,222.69 = 10,320.65/x
  3. Step 3: Cross multiply
    18,277.69x = 25,222.69 × 10,320.65
  4. Step 4: Simplify right side
    18,277.69x = 260,314,555.55
  5. Step 5: Solve for x
    x = 260,314,555.55/18,277.69
  6. Step 6: Final answer
    x = 14,242.20

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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.