Home / 15,367.43-21,201.80-9,319.52

Finding the Fourth Proportional to 15,367.43, 21,201.80 and 9,319.52

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Solution

The fourth proportional to 15,367.43, 21,201.80 and 9,319.52 is: 12,857.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,367.43 : 21,201.80 = 9,319.52 : x
  2. Step 2: Convert to fraction form
    15,367.43/21,201.80 = 9,319.52/x
  3. Step 3: Cross multiply
    15,367.43x = 21,201.80 × 9,319.52
  4. Step 4: Simplify right side
    15,367.43x = 197,590,446.53
  5. Step 5: Solve for x
    x = 197,590,446.53/15,367.43
  6. Step 6: Final answer
    x = 12,857.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.