Home / 12,750.56-19,130.45-6,512.15

Finding the Fourth Proportional to 12,750.56, 19,130.45 and 6,512.15

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Solution

The fourth proportional to 12,750.56, 19,130.45 and 6,512.15 is: 9,770.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.56 : 19,130.45 = 6,512.15 : x
  2. Step 2: Convert to fraction form
    12,750.56/19,130.45 = 6,512.15/x
  3. Step 3: Cross multiply
    12,750.56x = 19,130.45 × 6,512.15
  4. Step 4: Simplify right side
    12,750.56x = 124,580,231.75
  5. Step 5: Solve for x
    x = 124,580,231.75/12,750.56
  6. Step 6: Final answer
    x = 9,770.57

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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.