Home / 12,615.28-17,408.25-7,576.50

Finding the Fourth Proportional to 12,615.28, 17,408.25 and 7,576.50

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Solution

The fourth proportional to 12,615.28, 17,408.25 and 7,576.50 is: 10,455.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615.28 : 17,408.25 = 7,576.50 : x
  2. Step 2: Convert to fraction form
    12,615.28/17,408.25 = 7,576.50/x
  3. Step 3: Cross multiply
    12,615.28x = 17,408.25 × 7,576.50
  4. Step 4: Simplify right side
    12,615.28x = 131,893,671.41
  5. Step 5: Solve for x
    x = 131,893,671.41/12,615.28
  6. Step 6: Final answer
    x = 10,455.07

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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.