Home / 15,893.87-21,883.53-13,498.70

Finding the Fourth Proportional to 15,893.87, 21,883.53 and 13,498.70

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Solution

The fourth proportional to 15,893.87, 21,883.53 and 13,498.70 is: 18,585.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,893.87 : 21,883.53 = 13,498.70 : x
  2. Step 2: Convert to fraction form
    15,893.87/21,883.53 = 13,498.70/x
  3. Step 3: Cross multiply
    15,893.87x = 21,883.53 × 13,498.70
  4. Step 4: Simplify right side
    15,893.87x = 295,399,311.74
  5. Step 5: Solve for x
    x = 295,399,311.74/15,893.87
  6. Step 6: Final answer
    x = 18,585.74

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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.