Home / 17,580.78-26,352.95-10,991.84

Finding the Fourth Proportional to 17,580.78, 26,352.95 and 10,991.84

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Solution

The fourth proportional to 17,580.78, 26,352.95 and 10,991.84 is: 16,476.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,580.78 : 26,352.95 = 10,991.84 : x
  2. Step 2: Convert to fraction form
    17,580.78/26,352.95 = 10,991.84/x
  3. Step 3: Cross multiply
    17,580.78x = 26,352.95 × 10,991.84
  4. Step 4: Simplify right side
    17,580.78x = 289,667,223.20
  5. Step 5: Solve for x
    x = 289,667,223.20/17,580.78
  6. Step 6: Final answer
    x = 16,476.36

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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.