Home / 7,475.90-11,201.09-5,280.39

Finding the Fourth Proportional to 7,475.90, 11,201.09 and 5,280.39

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Solution

The fourth proportional to 7,475.90, 11,201.09 and 5,280.39 is: 7,911.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.90 : 11,201.09 = 5,280.39 : x
  2. Step 2: Convert to fraction form
    7,475.90/11,201.09 = 5,280.39/x
  3. Step 3: Cross multiply
    7,475.90x = 11,201.09 × 5,280.39
  4. Step 4: Simplify right side
    7,475.90x = 59,146,097.22
  5. Step 5: Solve for x
    x = 59,146,097.22/7,475.90
  6. Step 6: Final answer
    x = 7,911.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.