Home / 9,637.12-13,299.84-6,688

Finding the Fourth Proportional to 9,637.12, 13,299.84 and 6,688

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Solution

The fourth proportional to 9,637.12, 13,299.84 and 6,688 is: 9,229.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,637.12 : 13,299.84 = 6,688 : x
  2. Step 2: Convert to fraction form
    9,637.12/13,299.84 = 6,688/x
  3. Step 3: Cross multiply
    9,637.12x = 13,299.84 × 6,688
  4. Step 4: Simplify right side
    9,637.12x = 88,949,329.92
  5. Step 5: Solve for x
    x = 88,949,329.92/9,637.12
  6. Step 6: Final answer
    x = 9,229.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.