Home / 19,887.14-29,823.13-8,787.77

Finding the Fourth Proportional to 19,887.14, 29,823.13 and 8,787.77

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Solution

The fourth proportional to 19,887.14, 29,823.13 and 8,787.77 is: 13,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.14 : 29,823.13 = 8,787.77 : x
  2. Step 2: Convert to fraction form
    19,887.14/29,823.13 = 8,787.77/x
  3. Step 3: Cross multiply
    19,887.14x = 29,823.13 × 8,787.77
  4. Step 4: Simplify right side
    19,887.14x = 262,078,763.18
  5. Step 5: Solve for x
    x = 262,078,763.18/19,887.14
  6. Step 6: Final answer
    x = 13,178.30

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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.