Home / 13,663.35-18,857.21-7,696.17

Finding the Fourth Proportional to 13,663.35, 18,857.21 and 7,696.17

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Solution

The fourth proportional to 13,663.35, 18,857.21 and 7,696.17 is: 10,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.35 : 18,857.21 = 7,696.17 : x
  2. Step 2: Convert to fraction form
    13,663.35/18,857.21 = 7,696.17/x
  3. Step 3: Cross multiply
    13,663.35x = 18,857.21 × 7,696.17
  4. Step 4: Simplify right side
    13,663.35x = 145,128,255.40
  5. Step 5: Solve for x
    x = 145,128,255.40/13,663.35
  6. Step 6: Final answer
    x = 10,621.72

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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.