Home / 13,220.35-19,836.58-5,726.20

Finding the Fourth Proportional to 13,220.35, 19,836.58 and 5,726.20

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Solution

The fourth proportional to 13,220.35, 19,836.58 and 5,726.20 is: 8,591.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.35 : 19,836.58 = 5,726.20 : x
  2. Step 2: Convert to fraction form
    13,220.35/19,836.58 = 5,726.20/x
  3. Step 3: Cross multiply
    13,220.35x = 19,836.58 × 5,726.20
  4. Step 4: Simplify right side
    13,220.35x = 113,588,340.67
  5. Step 5: Solve for x
    x = 113,588,340.67/13,220.35
  6. Step 6: Final answer
    x = 8,591.93

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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.