Home / 18,387.39-25,373.64-10,429.41

Finding the Fourth Proportional to 18,387.39, 25,373.64 and 10,429.41

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Solution

The fourth proportional to 18,387.39, 25,373.64 and 10,429.41 is: 14,392.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.39 : 25,373.64 = 10,429.41 : x
  2. Step 2: Convert to fraction form
    18,387.39/25,373.64 = 10,429.41/x
  3. Step 3: Cross multiply
    18,387.39x = 25,373.64 × 10,429.41
  4. Step 4: Simplify right side
    18,387.39x = 264,632,094.75
  5. Step 5: Solve for x
    x = 264,632,094.75/18,387.39
  6. Step 6: Final answer
    x = 14,392.04

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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.