Home / 9,899.46-13,656.08-6,121.42

Finding the Fourth Proportional to 9,899.46, 13,656.08 and 6,121.42

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Solution

The fourth proportional to 9,899.46, 13,656.08 and 6,121.42 is: 8,444.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.46 : 13,656.08 = 6,121.42 : x
  2. Step 2: Convert to fraction form
    9,899.46/13,656.08 = 6,121.42/x
  3. Step 3: Cross multiply
    9,899.46x = 13,656.08 × 6,121.42
  4. Step 4: Simplify right side
    9,899.46x = 83,594,601.23
  5. Step 5: Solve for x
    x = 83,594,601.23/9,899.46
  6. Step 6: Final answer
    x = 8,444.36

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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.