Home / 13,109.02-19,658.31-4,787.14

Finding the Fourth Proportional to 13,109.02, 19,658.31 and 4,787.14

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Solution

The fourth proportional to 13,109.02, 19,658.31 and 4,787.14 is: 7,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109.02 : 19,658.31 = 4,787.14 : x
  2. Step 2: Convert to fraction form
    13,109.02/19,658.31 = 4,787.14/x
  3. Step 3: Cross multiply
    13,109.02x = 19,658.31 × 4,787.14
  4. Step 4: Simplify right side
    13,109.02x = 94,107,082.13
  5. Step 5: Solve for x
    x = 94,107,082.13/13,109.02
  6. Step 6: Final answer
    x = 7,178.80

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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.