Home / 15,721.14-21,683.86-10,676.60

Finding the Fourth Proportional to 15,721.14, 21,683.86 and 10,676.60

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Solution

The fourth proportional to 15,721.14, 21,683.86 and 10,676.60 is: 14,726.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,721.14 : 21,683.86 = 10,676.60 : x
  2. Step 2: Convert to fraction form
    15,721.14/21,683.86 = 10,676.60/x
  3. Step 3: Cross multiply
    15,721.14x = 21,683.86 × 10,676.60
  4. Step 4: Simplify right side
    15,721.14x = 231,509,899.68
  5. Step 5: Solve for x
    x = 231,509,899.68/15,721.14
  6. Step 6: Final answer
    x = 14,726.02

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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.