Home / 13,591.02-18,755.91-9,619.26

Finding the Fourth Proportional to 13,591.02, 18,755.91 and 9,619.26

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Solution

The fourth proportional to 13,591.02, 18,755.91 and 9,619.26 is: 13,274.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.02 : 18,755.91 = 9,619.26 : x
  2. Step 2: Convert to fraction form
    13,591.02/18,755.91 = 9,619.26/x
  3. Step 3: Cross multiply
    13,591.02x = 18,755.91 × 9,619.26
  4. Step 4: Simplify right side
    13,591.02x = 180,417,974.83
  5. Step 5: Solve for x
    x = 180,417,974.83/13,591.02
  6. Step 6: Final answer
    x = 13,274.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.