Home / 18,423.20-27,631.60-6,730.40

Finding the Fourth Proportional to 18,423.20, 27,631.60 and 6,730.40

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Solution

The fourth proportional to 18,423.20, 27,631.60 and 6,730.40 is: 10,094.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.20 : 27,631.60 = 6,730.40 : x
  2. Step 2: Convert to fraction form
    18,423.20/27,631.60 = 6,730.40/x
  3. Step 3: Cross multiply
    18,423.20x = 27,631.60 × 6,730.40
  4. Step 4: Simplify right side
    18,423.20x = 185,971,720.64
  5. Step 5: Solve for x
    x = 185,971,720.64/18,423.20
  6. Step 6: Final answer
    x = 10,094.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.