Home / 18,220.83-25,144.77-10,263.20

Finding the Fourth Proportional to 18,220.83, 25,144.77 and 10,263.20

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Solution

The fourth proportional to 18,220.83, 25,144.77 and 10,263.20 is: 14,163.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.83 : 25,144.77 = 10,263.20 : x
  2. Step 2: Convert to fraction form
    18,220.83/25,144.77 = 10,263.20/x
  3. Step 3: Cross multiply
    18,220.83x = 25,144.77 × 10,263.20
  4. Step 4: Simplify right side
    18,220.83x = 258,065,677.74
  5. Step 5: Solve for x
    x = 258,065,677.74/18,220.83
  6. Step 6: Final answer
    x = 14,163.22

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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.