Home / 13,990.68-19,291.14-10,447.92

Finding the Fourth Proportional to 13,990.68, 19,291.14 and 10,447.92

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Solution

The fourth proportional to 13,990.68, 19,291.14 and 10,447.92 is: 14,406.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.68 : 19,291.14 = 10,447.92 : x
  2. Step 2: Convert to fraction form
    13,990.68/19,291.14 = 10,447.92/x
  3. Step 3: Cross multiply
    13,990.68x = 19,291.14 × 10,447.92
  4. Step 4: Simplify right side
    13,990.68x = 201,552,287.43
  5. Step 5: Solve for x
    x = 201,552,287.43/13,990.68
  6. Step 6: Final answer
    x = 14,406.18

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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.