Home / 15,918.55-23,877.79-4,231.77

Finding the Fourth Proportional to 15,918.55, 23,877.79 and 4,231.77

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Solution

The fourth proportional to 15,918.55, 23,877.79 and 4,231.77 is: 6,347.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.55 : 23,877.79 = 4,231.77 : x
  2. Step 2: Convert to fraction form
    15,918.55/23,877.79 = 4,231.77/x
  3. Step 3: Cross multiply
    15,918.55x = 23,877.79 × 4,231.77
  4. Step 4: Simplify right side
    15,918.55x = 101,045,315.39
  5. Step 5: Solve for x
    x = 101,045,315.39/15,918.55
  6. Step 6: Final answer
    x = 6,347.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.