Home / 11,178.80-15,424.44-6,701.36

Finding the Fourth Proportional to 11,178.80, 15,424.44 and 6,701.36

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Solution

The fourth proportional to 11,178.80, 15,424.44 and 6,701.36 is: 9,246.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.80 : 15,424.44 = 6,701.36 : x
  2. Step 2: Convert to fraction form
    11,178.80/15,424.44 = 6,701.36/x
  3. Step 3: Cross multiply
    11,178.80x = 15,424.44 × 6,701.36
  4. Step 4: Simplify right side
    11,178.80x = 103,364,725.24
  5. Step 5: Solve for x
    x = 103,364,725.24/11,178.80
  6. Step 6: Final answer
    x = 9,246.50

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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.