Home / 11,406.16-15,739.60-6,370.08

Finding the Fourth Proportional to 11,406.16, 15,739.60 and 6,370.08

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Solution

The fourth proportional to 11,406.16, 15,739.60 and 6,370.08 is: 8,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.16 : 15,739.60 = 6,370.08 : x
  2. Step 2: Convert to fraction form
    11,406.16/15,739.60 = 6,370.08/x
  3. Step 3: Cross multiply
    11,406.16x = 15,739.60 × 6,370.08
  4. Step 4: Simplify right side
    11,406.16x = 100,262,511.17
  5. Step 5: Solve for x
    x = 100,262,511.17/11,406.16
  6. Step 6: Final answer
    x = 8,790.21

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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.