Home / 9,349.80-12,902.49-5,157.96

Finding the Fourth Proportional to 9,349.80, 12,902.49 and 5,157.96

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Solution

The fourth proportional to 9,349.80, 12,902.49 and 5,157.96 is: 7,117.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,349.80 : 12,902.49 = 5,157.96 : x
  2. Step 2: Convert to fraction form
    9,349.80/12,902.49 = 5,157.96/x
  3. Step 3: Cross multiply
    9,349.80x = 12,902.49 × 5,157.96
  4. Step 4: Simplify right side
    9,349.80x = 66,550,527.32
  5. Step 5: Solve for x
    x = 66,550,527.32/9,349.80
  6. Step 6: Final answer
    x = 7,117.86

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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.