Home / 19,802.55-29,703.86-8,123.97

Finding the Fourth Proportional to 19,802.55, 29,703.86 and 8,123.97

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Solution

The fourth proportional to 19,802.55, 29,703.86 and 8,123.97 is: 12,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,802.55 : 29,703.86 = 8,123.97 : x
  2. Step 2: Convert to fraction form
    19,802.55/29,703.86 = 8,123.97/x
  3. Step 3: Cross multiply
    19,802.55x = 29,703.86 × 8,123.97
  4. Step 4: Simplify right side
    19,802.55x = 241,313,226.90
  5. Step 5: Solve for x
    x = 241,313,226.90/19,802.55
  6. Step 6: Final answer
    x = 12,185.97

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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.