Home / 11,327.32-15,632.21-6,291.55

Finding the Fourth Proportional to 11,327.32, 15,632.21 and 6,291.55

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Solution

The fourth proportional to 11,327.32, 15,632.21 and 6,291.55 is: 8,682.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,327.32 : 15,632.21 = 6,291.55 : x
  2. Step 2: Convert to fraction form
    11,327.32/15,632.21 = 6,291.55/x
  3. Step 3: Cross multiply
    11,327.32x = 15,632.21 × 6,291.55
  4. Step 4: Simplify right side
    11,327.32x = 98,350,830.83
  5. Step 5: Solve for x
    x = 98,350,830.83/11,327.32
  6. Step 6: Final answer
    x = 8,682.62

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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.