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Finding the Fourth Proportional to 6,631.36, 9,886.04 and 6,320.32

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Solution

The fourth proportional to 6,631.36, 9,886.04 and 6,320.32 is: 9,422.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.36 : 9,886.04 = 6,320.32 : x
  2. Step 2: Convert to fraction form
    6,631.36/9,886.04 = 6,320.32/x
  3. Step 3: Cross multiply
    6,631.36x = 9,886.04 × 6,320.32
  4. Step 4: Simplify right side
    6,631.36x = 62,482,936.33
  5. Step 5: Solve for x
    x = 62,482,936.33/6,631.36
  6. Step 6: Final answer
    x = 9,422.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.