Home / 13,570.13-20,221.93-13,124.18

Finding the Fourth Proportional to 13,570.13, 20,221.93 and 13,124.18

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Solution

The fourth proportional to 13,570.13, 20,221.93 and 13,124.18 is: 19,557.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.13 : 20,221.93 = 13,124.18 : x
  2. Step 2: Convert to fraction form
    13,570.13/20,221.93 = 13,124.18/x
  3. Step 3: Cross multiply
    13,570.13x = 20,221.93 × 13,124.18
  4. Step 4: Simplify right side
    13,570.13x = 265,396,249.27
  5. Step 5: Solve for x
    x = 265,396,249.27/13,570.13
  6. Step 6: Final answer
    x = 19,557.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.