Home / 13,946.07-20,917.47-5,178.63

Finding the Fourth Proportional to 13,946.07, 20,917.47 and 5,178.63

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Solution

The fourth proportional to 13,946.07, 20,917.47 and 5,178.63 is: 7,767.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.07 : 20,917.47 = 5,178.63 : x
  2. Step 2: Convert to fraction form
    13,946.07/20,917.47 = 5,178.63/x
  3. Step 3: Cross multiply
    13,946.07x = 20,917.47 × 5,178.63
  4. Step 4: Simplify right side
    13,946.07x = 108,323,837.67
  5. Step 5: Solve for x
    x = 108,323,837.67/13,946.07
  6. Step 6: Final answer
    x = 7,767.34

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.