Home / 18,718.25-25,835.51-10,765.05

Finding the Fourth Proportional to 18,718.25, 25,835.51 and 10,765.05

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Solution

The fourth proportional to 18,718.25, 25,835.51 and 10,765.05 is: 14,858.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.25 : 25,835.51 = 10,765.05 : x
  2. Step 2: Convert to fraction form
    18,718.25/25,835.51 = 10,765.05/x
  3. Step 3: Cross multiply
    18,718.25x = 25,835.51 × 10,765.05
  4. Step 4: Simplify right side
    18,718.25x = 278,120,503.10
  5. Step 5: Solve for x
    x = 278,120,503.10/18,718.25
  6. Step 6: Final answer
    x = 14,858.26

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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.