Home / 9,822.88-13,555.88-5,631.92

Finding the Fourth Proportional to 9,822.88, 13,555.88 and 5,631.92

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Solution

The fourth proportional to 9,822.88, 13,555.88 and 5,631.92 is: 7,772.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,822.88 : 13,555.88 = 5,631.92 : x
  2. Step 2: Convert to fraction form
    9,822.88/13,555.88 = 5,631.92/x
  3. Step 3: Cross multiply
    9,822.88x = 13,555.88 × 5,631.92
  4. Step 4: Simplify right side
    9,822.88x = 76,345,631.69
  5. Step 5: Solve for x
    x = 76,345,631.69/9,822.88
  6. Step 6: Final answer
    x = 7,772.22

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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.