Home / 9,911.13-13,677.47-5,662.75

Finding the Fourth Proportional to 9,911.13, 13,677.47 and 5,662.75

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Solution

The fourth proportional to 9,911.13, 13,677.47 and 5,662.75 is: 7,814.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.13 : 13,677.47 = 5,662.75 : x
  2. Step 2: Convert to fraction form
    9,911.13/13,677.47 = 5,662.75/x
  3. Step 3: Cross multiply
    9,911.13x = 13,677.47 × 5,662.75
  4. Step 4: Simplify right side
    9,911.13x = 77,452,093.24
  5. Step 5: Solve for x
    x = 77,452,093.24/9,911.13
  6. Step 6: Final answer
    x = 7,814.66

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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.