Home / 9,899.96-13,656.77-6,121.92

Finding the Fourth Proportional to 9,899.96, 13,656.77 and 6,121.92

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Solution

The fourth proportional to 9,899.96, 13,656.77 and 6,121.92 is: 8,445.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.96 : 13,656.77 = 6,121.92 : x
  2. Step 2: Convert to fraction form
    9,899.96/13,656.77 = 6,121.92/x
  3. Step 3: Cross multiply
    9,899.96x = 13,656.77 × 6,121.92
  4. Step 4: Simplify right side
    9,899.96x = 83,605,653.40
  5. Step 5: Solve for x
    x = 83,605,653.40/9,899.96
  6. Step 6: Final answer
    x = 8,445.05

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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.