Home / 18,381.26-25,366.50-10,423.35

Finding the Fourth Proportional to 18,381.26, 25,366.50 and 10,423.35

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Solution

The fourth proportional to 18,381.26, 25,366.50 and 10,423.35 is: 14,384.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.26 : 25,366.50 = 10,423.35 : x
  2. Step 2: Convert to fraction form
    18,381.26/25,366.50 = 10,423.35/x
  3. Step 3: Cross multiply
    18,381.26x = 25,366.50 × 10,423.35
  4. Step 4: Simplify right side
    18,381.26x = 264,403,907.78
  5. Step 5: Solve for x
    x = 264,403,907.78/18,381.26
  6. Step 6: Final answer
    x = 14,384.43

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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.