Home / 13,612.39-20,406.25-9,454.36

Finding the Fourth Proportional to 13,612.39, 20,406.25 and 9,454.36

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Solution

The fourth proportional to 13,612.39, 20,406.25 and 9,454.36 is: 14,172.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.39 : 20,406.25 = 9,454.36 : x
  2. Step 2: Convert to fraction form
    13,612.39/20,406.25 = 9,454.36/x
  3. Step 3: Cross multiply
    13,612.39x = 20,406.25 × 9,454.36
  4. Step 4: Simplify right side
    13,612.39x = 192,927,994.55
  5. Step 5: Solve for x
    x = 192,927,994.55/13,612.39
  6. Step 6: Final answer
    x = 14,172.97

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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.