Home / 15,917.36-21,948.60-9,946.96

Finding the Fourth Proportional to 15,917.36, 21,948.60 and 9,946.96

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Solution

The fourth proportional to 15,917.36, 21,948.60 and 9,946.96 is: 13,715.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,917.36 : 21,948.60 = 9,946.96 : x
  2. Step 2: Convert to fraction form
    15,917.36/21,948.60 = 9,946.96/x
  3. Step 3: Cross multiply
    15,917.36x = 21,948.60 × 9,946.96
  4. Step 4: Simplify right side
    15,917.36x = 218,321,846.26
  5. Step 5: Solve for x
    x = 218,321,846.26/15,917.36
  6. Step 6: Final answer
    x = 13,715.96

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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.