Home / 13,310.95-19,966.43-6,288.66

Finding the Fourth Proportional to 13,310.95, 19,966.43 and 6,288.66

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Solution

The fourth proportional to 13,310.95, 19,966.43 and 6,288.66 is: 9,432.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.95 : 19,966.43 = 6,288.66 : x
  2. Step 2: Convert to fraction form
    13,310.95/19,966.43 = 6,288.66/x
  3. Step 3: Cross multiply
    13,310.95x = 19,966.43 × 6,288.66
  4. Step 4: Simplify right side
    13,310.95x = 125,562,089.68
  5. Step 5: Solve for x
    x = 125,562,089.68/13,310.95
  6. Step 6: Final answer
    x = 9,432.99

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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.