Home / 11,416.32-15,753.88-6,379.53

Finding the Fourth Proportional to 11,416.32, 15,753.88 and 6,379.53

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Solution

The fourth proportional to 11,416.32, 15,753.88 and 6,379.53 is: 8,803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,416.32 : 15,753.88 = 6,379.53 : x
  2. Step 2: Convert to fraction form
    11,416.32/15,753.88 = 6,379.53/x
  3. Step 3: Cross multiply
    11,416.32x = 15,753.88 × 6,379.53
  4. Step 4: Simplify right side
    11,416.32x = 100,502,405.41
  5. Step 5: Solve for x
    x = 100,502,405.41/11,416.32
  6. Step 6: Final answer
    x = 8,803.40

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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.