Home / 19,787.95-29,677.12-6,636.91

Finding the Fourth Proportional to 19,787.95, 29,677.12 and 6,636.91

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Solution

The fourth proportional to 19,787.95, 29,677.12 and 6,636.91 is: 9,953.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.95 : 29,677.12 = 6,636.91 : x
  2. Step 2: Convert to fraction form
    19,787.95/29,677.12 = 6,636.91/x
  3. Step 3: Cross multiply
    19,787.95x = 29,677.12 × 6,636.91
  4. Step 4: Simplify right side
    19,787.95x = 196,964,374.50
  5. Step 5: Solve for x
    x = 196,964,374.50/19,787.95
  6. Step 6: Final answer
    x = 9,953.75

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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.