Home / 19,817.88-29,708.22-6,661.05

Finding the Fourth Proportional to 19,817.88, 29,708.22 and 6,661.05

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Solution

The fourth proportional to 19,817.88, 29,708.22 and 6,661.05 is: 9,985.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.88 : 29,708.22 = 6,661.05 : x
  2. Step 2: Convert to fraction form
    19,817.88/29,708.22 = 6,661.05/x
  3. Step 3: Cross multiply
    19,817.88x = 29,708.22 × 6,661.05
  4. Step 4: Simplify right side
    19,817.88x = 197,887,982.04
  5. Step 5: Solve for x
    x = 197,887,982.04/19,817.88
  6. Step 6: Final answer
    x = 9,985.32

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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.