Home / 8,209.93-12,299.32-4,871.13

Finding the Fourth Proportional to 8,209.93, 12,299.32 and 4,871.13

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Solution

The fourth proportional to 8,209.93, 12,299.32 and 4,871.13 is: 7,297.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209.93 : 12,299.32 = 4,871.13 : x
  2. Step 2: Convert to fraction form
    8,209.93/12,299.32 = 4,871.13/x
  3. Step 3: Cross multiply
    8,209.93x = 12,299.32 × 4,871.13
  4. Step 4: Simplify right side
    8,209.93x = 59,911,586.63
  5. Step 5: Solve for x
    x = 59,911,586.63/8,209.93
  6. Step 6: Final answer
    x = 7,297.45

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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.