Home / 18,665.25-25,758.05-10,281.75

Finding the Fourth Proportional to 18,665.25, 25,758.05 and 10,281.75

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Solution

The fourth proportional to 18,665.25, 25,758.05 and 10,281.75 is: 14,188.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.25 : 25,758.05 = 10,281.75 : x
  2. Step 2: Convert to fraction form
    18,665.25/25,758.05 = 10,281.75/x
  3. Step 3: Cross multiply
    18,665.25x = 25,758.05 × 10,281.75
  4. Step 4: Simplify right side
    18,665.25x = 264,837,779.18
  5. Step 5: Solve for x
    x = 264,837,779.18/18,665.25
  6. Step 6: Final answer
    x = 14,188.82

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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.