Home / 7,639.55-10,528.31-5,958.30

Finding the Fourth Proportional to 7,639.55, 10,528.31 and 5,958.30

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Solution

The fourth proportional to 7,639.55, 10,528.31 and 5,958.30 is: 8,211.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.55 : 10,528.31 = 5,958.30 : x
  2. Step 2: Convert to fraction form
    7,639.55/10,528.31 = 5,958.30/x
  3. Step 3: Cross multiply
    7,639.55x = 10,528.31 × 5,958.30
  4. Step 4: Simplify right side
    7,639.55x = 62,730,799.68
  5. Step 5: Solve for x
    x = 62,730,799.68/7,639.55
  6. Step 6: Final answer
    x = 8,211.33

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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.