Home / 12,787.84-19,181.76-6,214.72

Finding the Fourth Proportional to 12,787.84, 19,181.76 and 6,214.72

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Solution

The fourth proportional to 12,787.84, 19,181.76 and 6,214.72 is: 9,322.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.84 : 19,181.76 = 6,214.72 : x
  2. Step 2: Convert to fraction form
    12,787.84/19,181.76 = 6,214.72/x
  3. Step 3: Cross multiply
    12,787.84x = 19,181.76 × 6,214.72
  4. Step 4: Simplify right side
    12,787.84x = 119,209,267.51
  5. Step 5: Solve for x
    x = 119,209,267.51/12,787.84
  6. Step 6: Final answer
    x = 9,322.08

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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.