Home / 9,987.06-13,782.90-5,511.67

Finding the Fourth Proportional to 9,987.06, 13,782.90 and 5,511.67

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Solution

The fourth proportional to 9,987.06, 13,782.90 and 5,511.67 is: 7,606.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.06 : 13,782.90 = 5,511.67 : x
  2. Step 2: Convert to fraction form
    9,987.06/13,782.90 = 5,511.67/x
  3. Step 3: Cross multiply
    9,987.06x = 13,782.90 × 5,511.67
  4. Step 4: Simplify right side
    9,987.06x = 75,966,796.44
  5. Step 5: Solve for x
    x = 75,966,796.44/9,987.06
  6. Step 6: Final answer
    x = 7,606.52

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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.