Home / 15,755.50-21,742.86-10,176.22

Finding the Fourth Proportional to 15,755.50, 21,742.86 and 10,176.22

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Solution

The fourth proportional to 15,755.50, 21,742.86 and 10,176.22 is: 14,043.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,755.50 : 21,742.86 = 10,176.22 : x
  2. Step 2: Convert to fraction form
    15,755.50/21,742.86 = 10,176.22/x
  3. Step 3: Cross multiply
    15,755.50x = 21,742.86 × 10,176.22
  4. Step 4: Simplify right side
    15,755.50x = 221,260,126.79
  5. Step 5: Solve for x
    x = 221,260,126.79/15,755.50
  6. Step 6: Final answer
    x = 14,043.36

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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.