Home / 7,664.28-11,490.16-3,967.58

Finding the Fourth Proportional to 7,664.28, 11,490.16 and 3,967.58

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Solution

The fourth proportional to 7,664.28, 11,490.16 and 3,967.58 is: 5,948.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.28 : 11,490.16 = 3,967.58 : x
  2. Step 2: Convert to fraction form
    7,664.28/11,490.16 = 3,967.58/x
  3. Step 3: Cross multiply
    7,664.28x = 11,490.16 × 3,967.58
  4. Step 4: Simplify right side
    7,664.28x = 45,588,071.56
  5. Step 5: Solve for x
    x = 45,588,071.56/7,664.28
  6. Step 6: Final answer
    x = 5,948.12

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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.