Home / 18,685.08-25,785.54-10,187.46

Finding the Fourth Proportional to 18,685.08, 25,785.54 and 10,187.46

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Solution

The fourth proportional to 18,685.08, 25,785.54 and 10,187.46 is: 14,058.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.08 : 25,785.54 = 10,187.46 : x
  2. Step 2: Convert to fraction form
    18,685.08/25,785.54 = 10,187.46/x
  3. Step 3: Cross multiply
    18,685.08x = 25,785.54 × 10,187.46
  4. Step 4: Simplify right side
    18,685.08x = 262,689,157.33
  5. Step 5: Solve for x
    x = 262,689,157.33/18,685.08
  6. Step 6: Final answer
    x = 14,058.77

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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.