Home / 15,893.07-21,917.20-9,518.64

Finding the Fourth Proportional to 15,893.07, 21,917.20 and 9,518.64

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Solution

The fourth proportional to 15,893.07, 21,917.20 and 9,518.64 is: 13,126.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,893.07 : 21,917.20 = 9,518.64 : x
  2. Step 2: Convert to fraction form
    15,893.07/21,917.20 = 9,518.64/x
  3. Step 3: Cross multiply
    15,893.07x = 21,917.20 × 9,518.64
  4. Step 4: Simplify right side
    15,893.07x = 208,621,889.01
  5. Step 5: Solve for x
    x = 208,621,889.01/15,893.07
  6. Step 6: Final answer
    x = 13,126.59

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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.