Home / 11,089.16-15,303.32-6,613.78

Finding the Fourth Proportional to 11,089.16, 15,303.32 and 6,613.78

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Solution

The fourth proportional to 11,089.16, 15,303.32 and 6,613.78 is: 9,127.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.16 : 15,303.32 = 6,613.78 : x
  2. Step 2: Convert to fraction form
    11,089.16/15,303.32 = 6,613.78/x
  3. Step 3: Cross multiply
    11,089.16x = 15,303.32 × 6,613.78
  4. Step 4: Simplify right side
    11,089.16x = 101,212,791.75
  5. Step 5: Solve for x
    x = 101,212,791.75/11,089.16
  6. Step 6: Final answer
    x = 9,127.18

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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.