Home / 7,639.80-10,528.65-5,958.56

Finding the Fourth Proportional to 7,639.80, 10,528.65 and 5,958.56

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Solution

The fourth proportional to 7,639.80, 10,528.65 and 5,958.56 is: 8,211.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.80 : 10,528.65 = 5,958.56 : x
  2. Step 2: Convert to fraction form
    7,639.80/10,528.65 = 5,958.56/x
  3. Step 3: Cross multiply
    7,639.80x = 10,528.65 × 5,958.56
  4. Step 4: Simplify right side
    7,639.80x = 62,735,592.74
  5. Step 5: Solve for x
    x = 62,735,592.74/7,639.80
  6. Step 6: Final answer
    x = 8,211.68

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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.