Home / 13,909.02-19,194.67-7,620.99

Finding the Fourth Proportional to 13,909.02, 19,194.67 and 7,620.99

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Solution

The fourth proportional to 13,909.02, 19,194.67 and 7,620.99 is: 10,517.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.02 : 19,194.67 = 7,620.99 : x
  2. Step 2: Convert to fraction form
    13,909.02/19,194.67 = 7,620.99/x
  3. Step 3: Cross multiply
    13,909.02x = 19,194.67 × 7,620.99
  4. Step 4: Simplify right side
    13,909.02x = 146,282,388.12
  5. Step 5: Solve for x
    x = 146,282,388.12/13,909.02
  6. Step 6: Final answer
    x = 10,517.09

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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.