Home / 11,206.80-15,470.52-6,490.08

Finding the Fourth Proportional to 11,206.80, 15,470.52 and 6,490.08

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Solution

The fourth proportional to 11,206.80, 15,470.52 and 6,490.08 is: 8,959.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,206.80 : 15,470.52 = 6,490.08 : x
  2. Step 2: Convert to fraction form
    11,206.80/15,470.52 = 6,490.08/x
  3. Step 3: Cross multiply
    11,206.80x = 15,470.52 × 6,490.08
  4. Step 4: Simplify right side
    11,206.80x = 100,404,912.44
  5. Step 5: Solve for x
    x = 100,404,912.44/11,206.80
  6. Step 6: Final answer
    x = 8,959.28

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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.