Home / 13,530.20-18,673.45-7,563.11

Finding the Fourth Proportional to 13,530.20, 18,673.45 and 7,563.11

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Solution

The fourth proportional to 13,530.20, 18,673.45 and 7,563.11 is: 10,438.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.20 : 18,673.45 = 7,563.11 : x
  2. Step 2: Convert to fraction form
    13,530.20/18,673.45 = 7,563.11/x
  3. Step 3: Cross multiply
    13,530.20x = 18,673.45 × 7,563.11
  4. Step 4: Simplify right side
    13,530.20x = 141,229,244.15
  5. Step 5: Solve for x
    x = 141,229,244.15/13,530.20
  6. Step 6: Final answer
    x = 10,438.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.