Home / 11,149.32-15,384.56-6,672.05

Finding the Fourth Proportional to 11,149.32, 15,384.56 and 6,672.05

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Solution

The fourth proportional to 11,149.32, 15,384.56 and 6,672.05 is: 9,206.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.32 : 15,384.56 = 6,672.05 : x
  2. Step 2: Convert to fraction form
    11,149.32/15,384.56 = 6,672.05/x
  3. Step 3: Cross multiply
    11,149.32x = 15,384.56 × 6,672.05
  4. Step 4: Simplify right side
    11,149.32x = 102,646,443.26
  5. Step 5: Solve for x
    x = 102,646,443.26/11,149.32
  6. Step 6: Final answer
    x = 9,206.52

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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.