Home / 15,120.35-22,666.35-5,118.09

Finding the Fourth Proportional to 15,120.35, 22,666.35 and 5,118.09

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Solution

The fourth proportional to 15,120.35, 22,666.35 and 5,118.09 is: 7,672.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,120.35 : 22,666.35 = 5,118.09 : x
  2. Step 2: Convert to fraction form
    15,120.35/22,666.35 = 5,118.09/x
  3. Step 3: Cross multiply
    15,120.35x = 22,666.35 × 5,118.09
  4. Step 4: Simplify right side
    15,120.35x = 116,008,487.00
  5. Step 5: Solve for x
    x = 116,008,487.00/15,120.35
  6. Step 6: Final answer
    x = 7,672.34

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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.