Home / 11,368.64-15,689.44-6,400.96

Finding the Fourth Proportional to 11,368.64, 15,689.44 and 6,400.96

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Solution

The fourth proportional to 11,368.64, 15,689.44 and 6,400.96 is: 8,833.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,368.64 : 15,689.44 = 6,400.96 : x
  2. Step 2: Convert to fraction form
    11,368.64/15,689.44 = 6,400.96/x
  3. Step 3: Cross multiply
    11,368.64x = 15,689.44 × 6,400.96
  4. Step 4: Simplify right side
    11,368.64x = 100,427,477.86
  5. Step 5: Solve for x
    x = 100,427,477.86/11,368.64
  6. Step 6: Final answer
    x = 8,833.73

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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.