Home / 19,167.20-28,733.70-7,477.70

Finding the Fourth Proportional to 19,167.20, 28,733.70 and 7,477.70

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Solution

The fourth proportional to 19,167.20, 28,733.70 and 7,477.70 is: 11,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,167.20 : 28,733.70 = 7,477.70 : x
  2. Step 2: Convert to fraction form
    19,167.20/28,733.70 = 7,477.70/x
  3. Step 3: Cross multiply
    19,167.20x = 28,733.70 × 7,477.70
  4. Step 4: Simplify right side
    19,167.20x = 214,861,988.49
  5. Step 5: Solve for x
    x = 214,861,988.49/19,167.20
  6. Step 6: Final answer
    x = 11,209.88

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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.