Home / 10,554.03-15,816.38-8,727.12

Finding the Fourth Proportional to 10,554.03, 15,816.38 and 8,727.12

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Solution

The fourth proportional to 10,554.03, 15,816.38 and 8,727.12 is: 13,078.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,554.03 : 15,816.38 = 8,727.12 : x
  2. Step 2: Convert to fraction form
    10,554.03/15,816.38 = 8,727.12/x
  3. Step 3: Cross multiply
    10,554.03x = 15,816.38 × 8,727.12
  4. Step 4: Simplify right side
    10,554.03x = 138,031,402.59
  5. Step 5: Solve for x
    x = 138,031,402.59/10,554.03
  6. Step 6: Final answer
    x = 13,078.55

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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.