Home / 17,775.05-26,667.52-7,778.01

Finding the Fourth Proportional to 17,775.05, 26,667.52 and 7,778.01

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Solution

The fourth proportional to 17,775.05, 26,667.52 and 7,778.01 is: 11,669.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,775.05 : 26,667.52 = 7,778.01 : x
  2. Step 2: Convert to fraction form
    17,775.05/26,667.52 = 7,778.01/x
  3. Step 3: Cross multiply
    17,775.05x = 26,667.52 × 7,778.01
  4. Step 4: Simplify right side
    17,775.05x = 207,420,317.79
  5. Step 5: Solve for x
    x = 207,420,317.79/17,775.05
  6. Step 6: Final answer
    x = 11,669.18

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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.