Home / 11,090.88-15,307.92-7,555.50

Finding the Fourth Proportional to 11,090.88, 15,307.92 and 7,555.50

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Solution

The fourth proportional to 11,090.88, 15,307.92 and 7,555.50 is: 10,428.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,090.88 : 15,307.92 = 7,555.50 : x
  2. Step 2: Convert to fraction form
    11,090.88/15,307.92 = 7,555.50/x
  3. Step 3: Cross multiply
    11,090.88x = 15,307.92 × 7,555.50
  4. Step 4: Simplify right side
    11,090.88x = 115,658,989.56
  5. Step 5: Solve for x
    x = 115,658,989.56/11,090.88
  6. Step 6: Final answer
    x = 10,428.30

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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.