Home / 12,644.48-18,958.88-5,254.08

Finding the Fourth Proportional to 12,644.48, 18,958.88 and 5,254.08

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Solution

The fourth proportional to 12,644.48, 18,958.88 and 5,254.08 is: 7,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.48 : 18,958.88 = 5,254.08 : x
  2. Step 2: Convert to fraction form
    12,644.48/18,958.88 = 5,254.08/x
  3. Step 3: Cross multiply
    12,644.48x = 18,958.88 × 5,254.08
  4. Step 4: Simplify right side
    12,644.48x = 99,611,472.23
  5. Step 5: Solve for x
    x = 99,611,472.23/12,644.48
  6. Step 6: Final answer
    x = 7,877.86

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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.