Home / 18,517.55-25,550.64-10,559.57

Finding the Fourth Proportional to 18,517.55, 25,550.64 and 10,559.57

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Solution

The fourth proportional to 18,517.55, 25,550.64 and 10,559.57 is: 14,570.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.55 : 25,550.64 = 10,559.57 : x
  2. Step 2: Convert to fraction form
    18,517.55/25,550.64 = 10,559.57/x
  3. Step 3: Cross multiply
    18,517.55x = 25,550.64 × 10,559.57
  4. Step 4: Simplify right side
    18,517.55x = 269,803,643.87
  5. Step 5: Solve for x
    x = 269,803,643.87/18,517.55
  6. Step 6: Final answer
    x = 14,570.16

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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.