Home / 9,987.22-13,782.27-5,511.01

Finding the Fourth Proportional to 9,987.22, 13,782.27 and 5,511.01

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Solution

The fourth proportional to 9,987.22, 13,782.27 and 5,511.01 is: 7,605.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.22 : 13,782.27 = 5,511.01 : x
  2. Step 2: Convert to fraction form
    9,987.22/13,782.27 = 5,511.01/x
  3. Step 3: Cross multiply
    9,987.22x = 13,782.27 × 5,511.01
  4. Step 4: Simplify right side
    9,987.22x = 75,954,227.79
  5. Step 5: Solve for x
    x = 75,954,227.79/9,987.22
  6. Step 6: Final answer
    x = 7,605.14

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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.