Home / 18,684.88-25,783.83-10,509.70

Finding the Fourth Proportional to 18,684.88, 25,783.83 and 10,509.70

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Solution

The fourth proportional to 18,684.88, 25,783.83 and 10,509.70 is: 14,502.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684.88 : 25,783.83 = 10,509.70 : x
  2. Step 2: Convert to fraction form
    18,684.88/25,783.83 = 10,509.70/x
  3. Step 3: Cross multiply
    18,684.88x = 25,783.83 × 10,509.70
  4. Step 4: Simplify right side
    18,684.88x = 270,980,318.15
  5. Step 5: Solve for x
    x = 270,980,318.15/18,684.88
  6. Step 6: Final answer
    x = 14,502.65

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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.