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Finding the Fourth Proportional to 7,015.33, 9,684.80 and 5,124.79

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Solution

The fourth proportional to 7,015.33, 9,684.80 and 5,124.79 is: 7,074.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.33 : 9,684.80 = 5,124.79 : x
  2. Step 2: Convert to fraction form
    7,015.33/9,684.80 = 5,124.79/x
  3. Step 3: Cross multiply
    7,015.33x = 9,684.80 × 5,124.79
  4. Step 4: Simplify right side
    7,015.33x = 49,632,566.19
  5. Step 5: Solve for x
    x = 49,632,566.19/7,015.33
  6. Step 6: Final answer
    x = 7,074.87

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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.