Home / 12,787.90-19,180.63-4,466.38

Finding the Fourth Proportional to 12,787.90, 19,180.63 and 4,466.38

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Solution

The fourth proportional to 12,787.90, 19,180.63 and 4,466.38 is: 6,699.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.90 : 19,180.63 = 4,466.38 : x
  2. Step 2: Convert to fraction form
    12,787.90/19,180.63 = 4,466.38/x
  3. Step 3: Cross multiply
    12,787.90x = 19,180.63 × 4,466.38
  4. Step 4: Simplify right side
    12,787.90x = 85,667,875.15
  5. Step 5: Solve for x
    x = 85,667,875.15/12,787.90
  6. Step 6: Final answer
    x = 6,699.14

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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.