Home / 14,190.06-19,578.18-9,157.20

Finding the Fourth Proportional to 14,190.06, 19,578.18 and 9,157.20

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Solution

The fourth proportional to 14,190.06, 19,578.18 and 9,157.20 is: 12,634.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.06 : 19,578.18 = 9,157.20 : x
  2. Step 2: Convert to fraction form
    14,190.06/19,578.18 = 9,157.20/x
  3. Step 3: Cross multiply
    14,190.06x = 19,578.18 × 9,157.20
  4. Step 4: Simplify right side
    14,190.06x = 179,281,309.90
  5. Step 5: Solve for x
    x = 179,281,309.90/14,190.06
  6. Step 6: Final answer
    x = 12,634.29

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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.