Home / 11,216.36-15,478.62-6,503.42

Finding the Fourth Proportional to 11,216.36, 15,478.62 and 6,503.42

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Solution

The fourth proportional to 11,216.36, 15,478.62 and 6,503.42 is: 8,974.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.36 : 15,478.62 = 6,503.42 : x
  2. Step 2: Convert to fraction form
    11,216.36/15,478.62 = 6,503.42/x
  3. Step 3: Cross multiply
    11,216.36x = 15,478.62 × 6,503.42
  4. Step 4: Simplify right side
    11,216.36x = 100,663,966.88
  5. Step 5: Solve for x
    x = 100,663,966.88/11,216.36
  6. Step 6: Final answer
    x = 8,974.74

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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.