Home / 7,112.61-10,683.90-4,340.79

Finding the Fourth Proportional to 7,112.61, 10,683.90 and 4,340.79

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Solution

The fourth proportional to 7,112.61, 10,683.90 and 4,340.79 is: 6,520.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.61 : 10,683.90 = 4,340.79 : x
  2. Step 2: Convert to fraction form
    7,112.61/10,683.90 = 4,340.79/x
  3. Step 3: Cross multiply
    7,112.61x = 10,683.90 × 4,340.79
  4. Step 4: Simplify right side
    7,112.61x = 46,376,566.28
  5. Step 5: Solve for x
    x = 46,376,566.28/7,112.61
  6. Step 6: Final answer
    x = 6,520.33

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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.