Home / 19,763.70-29,655.77-8,678.17

Finding the Fourth Proportional to 19,763.70, 29,655.77 and 8,678.17

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Solution

The fourth proportional to 19,763.70, 29,655.77 and 8,678.17 is: 13,021.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,763.70 : 29,655.77 = 8,678.17 : x
  2. Step 2: Convert to fraction form
    19,763.70/29,655.77 = 8,678.17/x
  3. Step 3: Cross multiply
    19,763.70x = 29,655.77 × 8,678.17
  4. Step 4: Simplify right side
    19,763.70x = 257,357,770.15
  5. Step 5: Solve for x
    x = 257,357,770.15/19,763.70
  6. Step 6: Final answer
    x = 13,021.74

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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.