Home / 6,913.32-9,540.84-3,929.16

Finding the Fourth Proportional to 6,913.32, 9,540.84 and 3,929.16

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Solution

The fourth proportional to 6,913.32, 9,540.84 and 3,929.16 is: 5,422.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913.32 : 9,540.84 = 3,929.16 : x
  2. Step 2: Convert to fraction form
    6,913.32/9,540.84 = 3,929.16/x
  3. Step 3: Cross multiply
    6,913.32x = 9,540.84 × 3,929.16
  4. Step 4: Simplify right side
    6,913.32x = 37,487,486.89
  5. Step 5: Solve for x
    x = 37,487,486.89/6,913.32
  6. Step 6: Final answer
    x = 5,422.50

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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.