Home / 13,419.14-20,129.41-4,058.91

Finding the Fourth Proportional to 13,419.14, 20,129.41 and 4,058.91

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Solution

The fourth proportional to 13,419.14, 20,129.41 and 4,058.91 is: 6,088.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.14 : 20,129.41 = 4,058.91 : x
  2. Step 2: Convert to fraction form
    13,419.14/20,129.41 = 4,058.91/x
  3. Step 3: Cross multiply
    13,419.14x = 20,129.41 × 4,058.91
  4. Step 4: Simplify right side
    13,419.14x = 81,703,536.41
  5. Step 5: Solve for x
    x = 81,703,536.41/13,419.14
  6. Step 6: Final answer
    x = 6,088.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.