Home / 19,159.70-28,722.45-7,470.20

Finding the Fourth Proportional to 19,159.70, 28,722.45 and 7,470.20

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Solution

The fourth proportional to 19,159.70, 28,722.45 and 7,470.20 is: 11,198.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,159.70 : 28,722.45 = 7,470.20 : x
  2. Step 2: Convert to fraction form
    19,159.70/28,722.45 = 7,470.20/x
  3. Step 3: Cross multiply
    19,159.70x = 28,722.45 × 7,470.20
  4. Step 4: Simplify right side
    19,159.70x = 214,562,445.99
  5. Step 5: Solve for x
    x = 214,562,445.99/19,159.70
  6. Step 6: Final answer
    x = 11,198.63

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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.