Home / 6,913.50-9,539.55-3,929.46

Finding the Fourth Proportional to 6,913.50, 9,539.55 and 3,929.46

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Solution

The fourth proportional to 6,913.50, 9,539.55 and 3,929.46 is: 5,422.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913.50 : 9,539.55 = 3,929.46 : x
  2. Step 2: Convert to fraction form
    6,913.50/9,539.55 = 3,929.46/x
  3. Step 3: Cross multiply
    6,913.50x = 9,539.55 × 3,929.46
  4. Step 4: Simplify right side
    6,913.50x = 37,485,280.14
  5. Step 5: Solve for x
    x = 37,485,280.14/6,913.50
  6. Step 6: Final answer
    x = 5,422.04

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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.