Home / 15,917.64-21,966.56-9,630.01

Finding the Fourth Proportional to 15,917.64, 21,966.56 and 9,630.01

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Solution

The fourth proportional to 15,917.64, 21,966.56 and 9,630.01 is: 13,289.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,917.64 : 21,966.56 = 9,630.01 : x
  2. Step 2: Convert to fraction form
    15,917.64/21,966.56 = 9,630.01/x
  3. Step 3: Cross multiply
    15,917.64x = 21,966.56 × 9,630.01
  4. Step 4: Simplify right side
    15,917.64x = 211,538,192.47
  5. Step 5: Solve for x
    x = 211,538,192.47/15,917.64
  6. Step 6: Final answer
    x = 13,289.54

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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.