Home / 18,219.28-25,145.02-10,263.08

Finding the Fourth Proportional to 18,219.28, 25,145.02 and 10,263.08

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Solution

The fourth proportional to 18,219.28, 25,145.02 and 10,263.08 is: 14,164.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.28 : 25,145.02 = 10,263.08 : x
  2. Step 2: Convert to fraction form
    18,219.28/25,145.02 = 10,263.08/x
  3. Step 3: Cross multiply
    18,219.28x = 25,145.02 × 10,263.08
  4. Step 4: Simplify right side
    18,219.28x = 258,065,351.86
  5. Step 5: Solve for x
    x = 258,065,351.86/18,219.28
  6. Step 6: Final answer
    x = 14,164.41

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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.