Home / 11,394.32-15,720.48-6,357.74

Finding the Fourth Proportional to 11,394.32, 15,720.48 and 6,357.74

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Solution

The fourth proportional to 11,394.32, 15,720.48 and 6,357.74 is: 8,771.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.32 : 15,720.48 = 6,357.74 : x
  2. Step 2: Convert to fraction form
    11,394.32/15,720.48 = 6,357.74/x
  3. Step 3: Cross multiply
    11,394.32x = 15,720.48 × 6,357.74
  4. Step 4: Simplify right side
    11,394.32x = 99,946,645.91
  5. Step 5: Solve for x
    x = 99,946,645.91/11,394.32
  6. Step 6: Final answer
    x = 8,771.62

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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.