Home / 11,442.32-15,790.44-6,406.76

Finding the Fourth Proportional to 11,442.32, 15,790.44 and 6,406.76

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Solution

The fourth proportional to 11,442.32, 15,790.44 and 6,406.76 is: 8,841.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,442.32 : 15,790.44 = 6,406.76 : x
  2. Step 2: Convert to fraction form
    11,442.32/15,790.44 = 6,406.76/x
  3. Step 3: Cross multiply
    11,442.32x = 15,790.44 × 6,406.76
  4. Step 4: Simplify right side
    11,442.32x = 101,165,559.37
  5. Step 5: Solve for x
    x = 101,165,559.37/11,442.32
  6. Step 6: Final answer
    x = 8,841.35

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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.