Home / 9,114.09-12,550.96-7,918.53

Finding the Fourth Proportional to 9,114.09, 12,550.96 and 7,918.53

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Solution

The fourth proportional to 9,114.09, 12,550.96 and 7,918.53 is: 10,904.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,114.09 : 12,550.96 = 7,918.53 : x
  2. Step 2: Convert to fraction form
    9,114.09/12,550.96 = 7,918.53/x
  3. Step 3: Cross multiply
    9,114.09x = 12,550.96 × 7,918.53
  4. Step 4: Simplify right side
    9,114.09x = 99,385,153.29
  5. Step 5: Solve for x
    x = 99,385,153.29/9,114.09
  6. Step 6: Final answer
    x = 10,904.56

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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.