Home / 13,551.13-20,326.70-8,933.05

Finding the Fourth Proportional to 13,551.13, 20,326.70 and 8,933.05

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Solution

The fourth proportional to 13,551.13, 20,326.70 and 8,933.05 is: 13,399.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.13 : 20,326.70 = 8,933.05 : x
  2. Step 2: Convert to fraction form
    13,551.13/20,326.70 = 8,933.05/x
  3. Step 3: Cross multiply
    13,551.13x = 20,326.70 × 8,933.05
  4. Step 4: Simplify right side
    13,551.13x = 181,579,405.10
  5. Step 5: Solve for x
    x = 181,579,405.10/13,551.13
  6. Step 6: Final answer
    x = 13,399.58

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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.