Home / 13,436.20-20,139.42-6,496.36

Finding the Fourth Proportional to 13,436.20, 20,139.42 and 6,496.36

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Solution

The fourth proportional to 13,436.20, 20,139.42 and 6,496.36 is: 9,737.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.20 : 20,139.42 = 6,496.36 : x
  2. Step 2: Convert to fraction form
    13,436.20/20,139.42 = 6,496.36/x
  3. Step 3: Cross multiply
    13,436.20x = 20,139.42 × 6,496.36
  4. Step 4: Simplify right side
    13,436.20x = 130,832,922.51
  5. Step 5: Solve for x
    x = 130,832,922.51/13,436.20
  6. Step 6: Final answer
    x = 9,737.35

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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.