Home / 15,339.38-23,013.93-5,478.44

Finding the Fourth Proportional to 15,339.38, 23,013.93 and 5,478.44

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Solution

The fourth proportional to 15,339.38, 23,013.93 and 5,478.44 is: 8,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.38 : 23,013.93 = 5,478.44 : x
  2. Step 2: Convert to fraction form
    15,339.38/23,013.93 = 5,478.44/x
  3. Step 3: Cross multiply
    15,339.38x = 23,013.93 × 5,478.44
  4. Step 4: Simplify right side
    15,339.38x = 126,080,434.67
  5. Step 5: Solve for x
    x = 126,080,434.67/15,339.38
  6. Step 6: Final answer
    x = 8,219.40

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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.