Home / 18,685.64-25,785.70-10,187.92

Finding the Fourth Proportional to 18,685.64, 25,785.70 and 10,187.92

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Solution

The fourth proportional to 18,685.64, 25,785.70 and 10,187.92 is: 14,059.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.64 : 25,785.70 = 10,187.92 : x
  2. Step 2: Convert to fraction form
    18,685.64/25,785.70 = 10,187.92/x
  3. Step 3: Cross multiply
    18,685.64x = 25,785.70 × 10,187.92
  4. Step 4: Simplify right side
    18,685.64x = 262,702,648.74
  5. Step 5: Solve for x
    x = 262,702,648.74/18,685.64
  6. Step 6: Final answer
    x = 14,059.07

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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.