Home / 7,631.62-10,523.31-6,628.04

Finding the Fourth Proportional to 7,631.62, 10,523.31 and 6,628.04

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Solution

The fourth proportional to 7,631.62, 10,523.31 and 6,628.04 is: 9,139.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.62 : 10,523.31 = 6,628.04 : x
  2. Step 2: Convert to fraction form
    7,631.62/10,523.31 = 6,628.04/x
  3. Step 3: Cross multiply
    7,631.62x = 10,523.31 × 6,628.04
  4. Step 4: Simplify right side
    7,631.62x = 69,748,919.61
  5. Step 5: Solve for x
    x = 69,748,919.61/7,631.62
  6. Step 6: Final answer
    x = 9,139.46

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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.