Home / 19,664.12-29,498.61-7,190.02

Finding the Fourth Proportional to 19,664.12, 29,498.61 and 7,190.02

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Solution

The fourth proportional to 19,664.12, 29,498.61 and 7,190.02 is: 10,785.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.12 : 29,498.61 = 7,190.02 : x
  2. Step 2: Convert to fraction form
    19,664.12/29,498.61 = 7,190.02/x
  3. Step 3: Cross multiply
    19,664.12x = 29,498.61 × 7,190.02
  4. Step 4: Simplify right side
    19,664.12x = 212,095,659.71
  5. Step 5: Solve for x
    x = 212,095,659.71/19,664.12
  6. Step 6: Final answer
    x = 10,785.92

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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.