Home / 9,811.40-13,536.68-5,561.76

Finding the Fourth Proportional to 9,811.40, 13,536.68 and 5,561.76

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Solution

The fourth proportional to 9,811.40, 13,536.68 and 5,561.76 is: 7,673.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,811.40 : 13,536.68 = 5,561.76 : x
  2. Step 2: Convert to fraction form
    9,811.40/13,536.68 = 5,561.76/x
  3. Step 3: Cross multiply
    9,811.40x = 13,536.68 × 5,561.76
  4. Step 4: Simplify right side
    9,811.40x = 75,287,765.36
  5. Step 5: Solve for x
    x = 75,287,765.36/9,811.40
  6. Step 6: Final answer
    x = 7,673.50

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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.