Home / 8,158.28-11,263.76-5,137.80

Finding the Fourth Proportional to 8,158.28, 11,263.76 and 5,137.80

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Solution

The fourth proportional to 8,158.28, 11,263.76 and 5,137.80 is: 7,093.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.28 : 11,263.76 = 5,137.80 : x
  2. Step 2: Convert to fraction form
    8,158.28/11,263.76 = 5,137.80/x
  3. Step 3: Cross multiply
    8,158.28x = 11,263.76 × 5,137.80
  4. Step 4: Simplify right side
    8,158.28x = 57,870,946.13
  5. Step 5: Solve for x
    x = 57,870,946.13/8,158.28
  6. Step 6: Final answer
    x = 7,093.52

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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.