Home / 15,905.55-23,858.76-4,218.75

Finding the Fourth Proportional to 15,905.55, 23,858.76 and 4,218.75

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Solution

The fourth proportional to 15,905.55, 23,858.76 and 4,218.75 is: 6,328.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.55 : 23,858.76 = 4,218.75 : x
  2. Step 2: Convert to fraction form
    15,905.55/23,858.76 = 4,218.75/x
  3. Step 3: Cross multiply
    15,905.55x = 23,858.76 × 4,218.75
  4. Step 4: Simplify right side
    15,905.55x = 100,654,143.75
  5. Step 5: Solve for x
    x = 100,654,143.75/15,905.55
  6. Step 6: Final answer
    x = 6,328.24

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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.