Home / 8,355.28-12,518.34-7,451.32

Finding the Fourth Proportional to 8,355.28, 12,518.34 and 7,451.32

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Solution

The fourth proportional to 8,355.28, 12,518.34 and 7,451.32 is: 11,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.28 : 12,518.34 = 7,451.32 : x
  2. Step 2: Convert to fraction form
    8,355.28/12,518.34 = 7,451.32/x
  3. Step 3: Cross multiply
    8,355.28x = 12,518.34 × 7,451.32
  4. Step 4: Simplify right side
    8,355.28x = 93,278,157.21
  5. Step 5: Solve for x
    x = 93,278,157.21/8,355.28
  6. Step 6: Final answer
    x = 11,163.98

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1.5x scale

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.