Home / 18,783.68-25,921.26-10,285.70

Finding the Fourth Proportional to 18,783.68, 25,921.26 and 10,285.70

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Solution

The fourth proportional to 18,783.68, 25,921.26 and 10,285.70 is: 14,194.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.68 : 25,921.26 = 10,285.70 : x
  2. Step 2: Convert to fraction form
    18,783.68/25,921.26 = 10,285.70/x
  3. Step 3: Cross multiply
    18,783.68x = 25,921.26 × 10,285.70
  4. Step 4: Simplify right side
    18,783.68x = 266,618,303.98
  5. Step 5: Solve for x
    x = 266,618,303.98/18,783.68
  6. Step 6: Final answer
    x = 14,194.15

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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.