Home / 13,551.07-20,327.73-3,555.79

Finding the Fourth Proportional to 13,551.07, 20,327.73 and 3,555.79

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Solution

The fourth proportional to 13,551.07, 20,327.73 and 3,555.79 is: 5,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.07 : 20,327.73 = 3,555.79 : x
  2. Step 2: Convert to fraction form
    13,551.07/20,327.73 = 3,555.79/x
  3. Step 3: Cross multiply
    13,551.07x = 20,327.73 × 3,555.79
  4. Step 4: Simplify right side
    13,551.07x = 72,281,139.06
  5. Step 5: Solve for x
    x = 72,281,139.06/13,551.07
  6. Step 6: Final answer
    x = 5,333.98

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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.