Home / 8,726.40-12,046.32-5,190.84

Finding the Fourth Proportional to 8,726.40, 12,046.32 and 5,190.84

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Solution

The fourth proportional to 8,726.40, 12,046.32 and 5,190.84 is: 7,165.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.40 : 12,046.32 = 5,190.84 : x
  2. Step 2: Convert to fraction form
    8,726.40/12,046.32 = 5,190.84/x
  3. Step 3: Cross multiply
    8,726.40x = 12,046.32 × 5,190.84
  4. Step 4: Simplify right side
    8,726.40x = 62,530,519.71
  5. Step 5: Solve for x
    x = 62,530,519.71/8,726.40
  6. Step 6: Final answer
    x = 7,165.67

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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.