Home / 19,178.88-28,768.16-7,500.24

Finding the Fourth Proportional to 19,178.88, 28,768.16 and 7,500.24

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Solution

The fourth proportional to 19,178.88, 28,768.16 and 7,500.24 is: 11,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178.88 : 28,768.16 = 7,500.24 : x
  2. Step 2: Convert to fraction form
    19,178.88/28,768.16 = 7,500.24/x
  3. Step 3: Cross multiply
    19,178.88x = 28,768.16 × 7,500.24
  4. Step 4: Simplify right side
    19,178.88x = 215,768,104.36
  5. Step 5: Solve for x
    x = 215,768,104.36/19,178.88
  6. Step 6: Final answer
    x = 11,250.30

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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.