Home / 12,657.04-18,986.22-5,635.36

Finding the Fourth Proportional to 12,657.04, 18,986.22 and 5,635.36

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Solution

The fourth proportional to 12,657.04, 18,986.22 and 5,635.36 is: 8,453.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.04 : 18,986.22 = 5,635.36 : x
  2. Step 2: Convert to fraction form
    12,657.04/18,986.22 = 5,635.36/x
  3. Step 3: Cross multiply
    12,657.04x = 18,986.22 × 5,635.36
  4. Step 4: Simplify right side
    12,657.04x = 106,994,184.74
  5. Step 5: Solve for x
    x = 106,994,184.74/12,657.04
  6. Step 6: Final answer
    x = 8,453.33

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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.