Home / 18,423.14-25,423.26-10,869.80

Finding the Fourth Proportional to 18,423.14, 25,423.26 and 10,869.80

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Solution

The fourth proportional to 18,423.14, 25,423.26 and 10,869.80 is: 14,999.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.14 : 25,423.26 = 10,869.80 : x
  2. Step 2: Convert to fraction form
    18,423.14/25,423.26 = 10,869.80/x
  3. Step 3: Cross multiply
    18,423.14x = 25,423.26 × 10,869.80
  4. Step 4: Simplify right side
    18,423.14x = 276,345,751.55
  5. Step 5: Solve for x
    x = 276,345,751.55/18,423.14
  6. Step 6: Final answer
    x = 14,999.93

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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.