Home / 18,218.35-25,140.84-10,260.10

Finding the Fourth Proportional to 18,218.35, 25,140.84 and 10,260.10

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Solution

The fourth proportional to 18,218.35, 25,140.84 and 10,260.10 is: 14,158.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.35 : 25,140.84 = 10,260.10 : x
  2. Step 2: Convert to fraction form
    18,218.35/25,140.84 = 10,260.10/x
  3. Step 3: Cross multiply
    18,218.35x = 25,140.84 × 10,260.10
  4. Step 4: Simplify right side
    18,218.35x = 257,947,406.78
  5. Step 5: Solve for x
    x = 257,947,406.78/18,218.35
  6. Step 6: Final answer
    x = 14,158.66

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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.