Home / 7,728.71-11,591.51-4,946.96

Finding the Fourth Proportional to 7,728.71, 11,591.51 and 4,946.96

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Solution

The fourth proportional to 7,728.71, 11,591.51 and 4,946.96 is: 7,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.71 : 11,591.51 = 4,946.96 : x
  2. Step 2: Convert to fraction form
    7,728.71/11,591.51 = 4,946.96/x
  3. Step 3: Cross multiply
    7,728.71x = 11,591.51 × 4,946.96
  4. Step 4: Simplify right side
    7,728.71x = 57,342,740.55
  5. Step 5: Solve for x
    x = 57,342,740.55/7,728.71
  6. Step 6: Final answer
    x = 7,419.45

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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.