Home / 8,155.35-12,287.39-7,376.22

Finding the Fourth Proportional to 8,155.35, 12,287.39 and 7,376.22

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Solution

The fourth proportional to 8,155.35, 12,287.39 and 7,376.22 is: 11,113.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.35 : 12,287.39 = 7,376.22 : x
  2. Step 2: Convert to fraction form
    8,155.35/12,287.39 = 7,376.22/x
  3. Step 3: Cross multiply
    8,155.35x = 12,287.39 × 7,376.22
  4. Step 4: Simplify right side
    8,155.35x = 90,634,454.98
  5. Step 5: Solve for x
    x = 90,634,454.98/8,155.35
  6. Step 6: Final answer
    x = 11,113.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.