Home / 18,665.45-25,758.32-10,281.95

Finding the Fourth Proportional to 18,665.45, 25,758.32 and 10,281.95

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Solution

The fourth proportional to 18,665.45, 25,758.32 and 10,281.95 is: 14,189.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.45 : 25,758.32 = 10,281.95 : x
  2. Step 2: Convert to fraction form
    18,665.45/25,758.32 = 10,281.95/x
  3. Step 3: Cross multiply
    18,665.45x = 25,758.32 × 10,281.95
  4. Step 4: Simplify right side
    18,665.45x = 264,845,758.32
  5. Step 5: Solve for x
    x = 264,845,758.32/18,665.45
  6. Step 6: Final answer
    x = 14,189.09

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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.