Home / 14,955.26-20,638.26-8,671.28

Finding the Fourth Proportional to 14,955.26, 20,638.26 and 8,671.28

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Solution

The fourth proportional to 14,955.26, 20,638.26 and 8,671.28 is: 11,966.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,955.26 : 20,638.26 = 8,671.28 : x
  2. Step 2: Convert to fraction form
    14,955.26/20,638.26 = 8,671.28/x
  3. Step 3: Cross multiply
    14,955.26x = 20,638.26 × 8,671.28
  4. Step 4: Simplify right side
    14,955.26x = 178,960,131.17
  5. Step 5: Solve for x
    x = 178,960,131.17/14,955.26
  6. Step 6: Final answer
    x = 11,966.37

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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.