Home / 8,530.06-12,787.21-7,829.53

Finding the Fourth Proportional to 8,530.06, 12,787.21 and 7,829.53

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Solution

The fourth proportional to 8,530.06, 12,787.21 and 7,829.53 is: 11,737.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.06 : 12,787.21 = 7,829.53 : x
  2. Step 2: Convert to fraction form
    8,530.06/12,787.21 = 7,829.53/x
  3. Step 3: Cross multiply
    8,530.06x = 12,787.21 × 7,829.53
  4. Step 4: Simplify right side
    8,530.06x = 100,117,844.31
  5. Step 5: Solve for x
    x = 100,117,844.31/8,530.06
  6. Step 6: Final answer
    x = 11,737.06

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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.