Home / 11,943.28-16,481-6,637.92

Finding the Fourth Proportional to 11,943.28, 16,481 and 6,637.92

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Solution

The fourth proportional to 11,943.28, 16,481 and 6,637.92 is: 9,159.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.28 : 16,481 = 6,637.92 : x
  2. Step 2: Convert to fraction form
    11,943.28/16,481 = 6,637.92/x
  3. Step 3: Cross multiply
    11,943.28x = 16,481 × 6,637.92
  4. Step 4: Simplify right side
    11,943.28x = 109,399,559.52
  5. Step 5: Solve for x
    x = 109,399,559.52/11,943.28
  6. Step 6: Final answer
    x = 9,159.93

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1.5x scale

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.