Home / 13,355.32-20,053.82-12,763.80

Finding the Fourth Proportional to 13,355.32, 20,053.82 and 12,763.80

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Solution

The fourth proportional to 13,355.32, 20,053.82 and 12,763.80 is: 19,165.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.32 : 20,053.82 = 12,763.80 : x
  2. Step 2: Convert to fraction form
    13,355.32/20,053.82 = 12,763.80/x
  3. Step 3: Cross multiply
    13,355.32x = 20,053.82 × 12,763.80
  4. Step 4: Simplify right side
    13,355.32x = 255,962,947.72
  5. Step 5: Solve for x
    x = 255,962,947.72/13,355.32
  6. Step 6: Final answer
    x = 19,165.62

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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.