Home / 10,379.74-15,570.56-4,138.24

Finding the Fourth Proportional to 10,379.74, 15,570.56 and 4,138.24

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Solution

The fourth proportional to 10,379.74, 15,570.56 and 4,138.24 is: 6,207.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.74 : 15,570.56 = 4,138.24 : x
  2. Step 2: Convert to fraction form
    10,379.74/15,570.56 = 4,138.24/x
  3. Step 3: Cross multiply
    10,379.74x = 15,570.56 × 4,138.24
  4. Step 4: Simplify right side
    10,379.74x = 64,434,714.21
  5. Step 5: Solve for x
    x = 64,434,714.21/10,379.74
  6. Step 6: Final answer
    x = 6,207.74

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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.