Home / 13,717.60-18,943.68-9,479.52

Finding the Fourth Proportional to 13,717.60, 18,943.68 and 9,479.52

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Solution

The fourth proportional to 13,717.60, 18,943.68 and 9,479.52 is: 13,090.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.60 : 18,943.68 = 9,479.52 : x
  2. Step 2: Convert to fraction form
    13,717.60/18,943.68 = 9,479.52/x
  3. Step 3: Cross multiply
    13,717.60x = 18,943.68 × 9,479.52
  4. Step 4: Simplify right side
    13,717.60x = 179,576,993.43
  5. Step 5: Solve for x
    x = 179,576,993.43/13,717.60
  6. Step 6: Final answer
    x = 13,090.99

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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.