Home / 18,518.66-25,557.23-10,561.48

Finding the Fourth Proportional to 18,518.66, 25,557.23 and 10,561.48

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Solution

The fourth proportional to 18,518.66, 25,557.23 and 10,561.48 is: 14,575.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.66 : 25,557.23 = 10,561.48 : x
  2. Step 2: Convert to fraction form
    18,518.66/25,557.23 = 10,561.48/x
  3. Step 3: Cross multiply
    18,518.66x = 25,557.23 × 10,561.48
  4. Step 4: Simplify right side
    18,518.66x = 269,922,173.50
  5. Step 5: Solve for x
    x = 269,922,173.50/18,518.66
  6. Step 6: Final answer
    x = 14,575.69

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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.