Home / 13,948.51-20,998.17-12,707.08

Finding the Fourth Proportional to 13,948.51, 20,998.17 and 12,707.08

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Solution

The fourth proportional to 13,948.51, 20,998.17 and 12,707.08 is: 19,129.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.51 : 20,998.17 = 12,707.08 : x
  2. Step 2: Convert to fraction form
    13,948.51/20,998.17 = 12,707.08/x
  3. Step 3: Cross multiply
    13,948.51x = 20,998.17 × 12,707.08
  4. Step 4: Simplify right side
    13,948.51x = 266,825,355.68
  5. Step 5: Solve for x
    x = 266,825,355.68/13,948.51
  6. Step 6: Final answer
    x = 19,129.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.