Home / 15,739.01-21,719.00-8,664.06

Finding the Fourth Proportional to 15,739.01, 21,719.00 and 8,664.06

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Solution

The fourth proportional to 15,739.01, 21,719.00 and 8,664.06 is: 11,955.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739.01 : 21,719.00 = 8,664.06 : x
  2. Step 2: Convert to fraction form
    15,739.01/21,719.00 = 8,664.06/x
  3. Step 3: Cross multiply
    15,739.01x = 21,719.00 × 8,664.06
  4. Step 4: Simplify right side
    15,739.01x = 188,174,740.80
  5. Step 5: Solve for x
    x = 188,174,740.80/15,739.01
  6. Step 6: Final answer
    x = 11,955.95

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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.