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Finding the Fourth Proportional to 6,642.06, 9,964.47 and 5,554.03

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Solution

The fourth proportional to 6,642.06, 9,964.47 and 5,554.03 is: 8,332.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.06 : 9,964.47 = 5,554.03 : x
  2. Step 2: Convert to fraction form
    6,642.06/9,964.47 = 5,554.03/x
  3. Step 3: Cross multiply
    6,642.06x = 9,964.47 × 5,554.03
  4. Step 4: Simplify right side
    6,642.06x = 55,342,948.67
  5. Step 5: Solve for x
    x = 55,342,948.67/6,642.06
  6. Step 6: Final answer
    x = 8,332.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.