Home / 18,348.42-25,322.08-10,390.70

Finding the Fourth Proportional to 18,348.42, 25,322.08 and 10,390.70

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Solution

The fourth proportional to 18,348.42, 25,322.08 and 10,390.70 is: 14,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348.42 : 25,322.08 = 10,390.70 : x
  2. Step 2: Convert to fraction form
    18,348.42/25,322.08 = 10,390.70/x
  3. Step 3: Cross multiply
    18,348.42x = 25,322.08 × 10,390.70
  4. Step 4: Simplify right side
    18,348.42x = 263,114,136.66
  5. Step 5: Solve for x
    x = 263,114,136.66/18,348.42
  6. Step 6: Final answer
    x = 14,339.88

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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.