Home / 19,778.18-29,685.02-9,922.97

Finding the Fourth Proportional to 19,778.18, 29,685.02 and 9,922.97

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Solution

The fourth proportional to 19,778.18, 29,685.02 and 9,922.97 is: 14,893.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778.18 : 29,685.02 = 9,922.97 : x
  2. Step 2: Convert to fraction form
    19,778.18/29,685.02 = 9,922.97/x
  3. Step 3: Cross multiply
    19,778.18x = 29,685.02 × 9,922.97
  4. Step 4: Simplify right side
    19,778.18x = 294,563,587.51
  5. Step 5: Solve for x
    x = 294,563,587.51/19,778.18
  6. Step 6: Final answer
    x = 14,893.37

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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.