Home / 11,212.32-15,473.52-6,499.20

Finding the Fourth Proportional to 11,212.32, 15,473.52 and 6,499.20

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Solution

The fourth proportional to 11,212.32, 15,473.52 and 6,499.20 is: 8,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.32 : 15,473.52 = 6,499.20 : x
  2. Step 2: Convert to fraction form
    11,212.32/15,473.52 = 6,499.20/x
  3. Step 3: Cross multiply
    11,212.32x = 15,473.52 × 6,499.20
  4. Step 4: Simplify right side
    11,212.32x = 100,565,501.18
  5. Step 5: Solve for x
    x = 100,565,501.18/11,212.32
  6. Step 6: Final answer
    x = 8,969.20

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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.