Home / 12,533.14-18,756.19-7,787.35

Finding the Fourth Proportional to 12,533.14, 18,756.19 and 7,787.35

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Solution

The fourth proportional to 12,533.14, 18,756.19 and 7,787.35 is: 11,653.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,533.14 : 18,756.19 = 7,787.35 : x
  2. Step 2: Convert to fraction form
    12,533.14/18,756.19 = 7,787.35/x
  3. Step 3: Cross multiply
    12,533.14x = 18,756.19 × 7,787.35
  4. Step 4: Simplify right side
    12,533.14x = 146,061,016.20
  5. Step 5: Solve for x
    x = 146,061,016.20/12,533.14
  6. Step 6: Final answer
    x = 11,653.98

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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.