Home / 13,955.47-20,908.82-11,630.41

Finding the Fourth Proportional to 13,955.47, 20,908.82 and 11,630.41

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Solution

The fourth proportional to 13,955.47, 20,908.82 and 11,630.41 is: 17,425.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.47 : 20,908.82 = 11,630.41 : x
  2. Step 2: Convert to fraction form
    13,955.47/20,908.82 = 11,630.41/x
  3. Step 3: Cross multiply
    13,955.47x = 20,908.82 × 11,630.41
  4. Step 4: Simplify right side
    13,955.47x = 243,178,126.02
  5. Step 5: Solve for x
    x = 243,178,126.02/13,955.47
  6. Step 6: Final answer
    x = 17,425.29

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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.