Home / 13,251.02-19,876.33-3,390.22

Finding the Fourth Proportional to 13,251.02, 19,876.33 and 3,390.22

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Solution

The fourth proportional to 13,251.02, 19,876.33 and 3,390.22 is: 5,085.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.02 : 19,876.33 = 3,390.22 : x
  2. Step 2: Convert to fraction form
    13,251.02/19,876.33 = 3,390.22/x
  3. Step 3: Cross multiply
    13,251.02x = 19,876.33 × 3,390.22
  4. Step 4: Simplify right side
    13,251.02x = 67,385,131.49
  5. Step 5: Solve for x
    x = 67,385,131.49/13,251.02
  6. Step 6: Final answer
    x = 5,085.28

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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.