Home / 9,159.80-13,739.67-3,316.86

Finding the Fourth Proportional to 9,159.80, 13,739.67 and 3,316.86

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Solution

The fourth proportional to 9,159.80, 13,739.67 and 3,316.86 is: 4,975.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.80 : 13,739.67 = 3,316.86 : x
  2. Step 2: Convert to fraction form
    9,159.80/13,739.67 = 3,316.86/x
  3. Step 3: Cross multiply
    9,159.80x = 13,739.67 × 3,316.86
  4. Step 4: Simplify right side
    9,159.80x = 45,572,561.84
  5. Step 5: Solve for x
    x = 45,572,561.84/9,159.80
  6. Step 6: Final answer
    x = 4,975.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.