Home / 11,320.42-15,619.71-6,844.09

Finding the Fourth Proportional to 11,320.42, 15,619.71 and 6,844.09

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Solution

The fourth proportional to 11,320.42, 15,619.71 and 6,844.09 is: 9,443.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.42 : 15,619.71 = 6,844.09 : x
  2. Step 2: Convert to fraction form
    11,320.42/15,619.71 = 6,844.09/x
  3. Step 3: Cross multiply
    11,320.42x = 15,619.71 × 6,844.09
  4. Step 4: Simplify right side
    11,320.42x = 106,902,701.01
  5. Step 5: Solve for x
    x = 106,902,701.01/11,320.42
  6. Step 6: Final answer
    x = 9,443.35

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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.