Home / 11,208.32-15,470.88-6,493.76

Finding the Fourth Proportional to 11,208.32, 15,470.88 and 6,493.76

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Solution

The fourth proportional to 11,208.32, 15,470.88 and 6,493.76 is: 8,963.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.32 : 15,470.88 = 6,493.76 : x
  2. Step 2: Convert to fraction form
    11,208.32/15,470.88 = 6,493.76/x
  3. Step 3: Cross multiply
    11,208.32x = 15,470.88 × 6,493.76
  4. Step 4: Simplify right side
    11,208.32x = 100,464,181.71
  5. Step 5: Solve for x
    x = 100,464,181.71/11,208.32
  6. Step 6: Final answer
    x = 8,963.36

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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.