Home / 13,105.59-19,621.47-11,777.00

Finding the Fourth Proportional to 13,105.59, 19,621.47 and 11,777.00

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Solution

The fourth proportional to 13,105.59, 19,621.47 and 11,777.00 is: 17,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,105.59 : 19,621.47 = 11,777.00 : x
  2. Step 2: Convert to fraction form
    13,105.59/19,621.47 = 11,777.00/x
  3. Step 3: Cross multiply
    13,105.59x = 19,621.47 × 11,777.00
  4. Step 4: Simplify right side
    13,105.59x = 231,081,954.08
  5. Step 5: Solve for x
    x = 231,081,954.08/13,105.59
  6. Step 6: Final answer
    x = 17,632.32

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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.