Home / 10,147.88-15,208.04-5,709.08

Finding the Fourth Proportional to 10,147.88, 15,208.04 and 5,709.08

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Solution

The fourth proportional to 10,147.88, 15,208.04 and 5,709.08 is: 8,555.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.88 : 15,208.04 = 5,709.08 : x
  2. Step 2: Convert to fraction form
    10,147.88/15,208.04 = 5,709.08/x
  3. Step 3: Cross multiply
    10,147.88x = 15,208.04 × 5,709.08
  4. Step 4: Simplify right side
    10,147.88x = 86,823,917.00
  5. Step 5: Solve for x
    x = 86,823,917.00/10,147.88
  6. Step 6: Final answer
    x = 8,555.87

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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.