Home / 8,040.60-12,058.34-7,515.86

Finding the Fourth Proportional to 8,040.60, 12,058.34 and 7,515.86

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Solution

The fourth proportional to 8,040.60, 12,058.34 and 7,515.86 is: 11,271.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,040.60 : 12,058.34 = 7,515.86 : x
  2. Step 2: Convert to fraction form
    8,040.60/12,058.34 = 7,515.86/x
  3. Step 3: Cross multiply
    8,040.60x = 12,058.34 × 7,515.86
  4. Step 4: Simplify right side
    8,040.60x = 90,628,697.40
  5. Step 5: Solve for x
    x = 90,628,697.40/8,040.60
  6. Step 6: Final answer
    x = 11,271.38

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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.