Home / 13,331.84-19,996.56-12,287.84

Finding the Fourth Proportional to 13,331.84, 19,996.56 and 12,287.84

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Solution

The fourth proportional to 13,331.84, 19,996.56 and 12,287.84 is: 18,430.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.84 : 19,996.56 = 12,287.84 : x
  2. Step 2: Convert to fraction form
    13,331.84/19,996.56 = 12,287.84/x
  3. Step 3: Cross multiply
    13,331.84x = 19,996.56 × 12,287.84
  4. Step 4: Simplify right side
    13,331.84x = 245,714,529.83
  5. Step 5: Solve for x
    x = 245,714,529.83/13,331.84
  6. Step 6: Final answer
    x = 18,430.65

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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.