Home / 8,155.35-12,209.85-5,373.63

Finding the Fourth Proportional to 8,155.35, 12,209.85 and 5,373.63

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Solution

The fourth proportional to 8,155.35, 12,209.85 and 5,373.63 is: 8,045.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.35 : 12,209.85 = 5,373.63 : x
  2. Step 2: Convert to fraction form
    8,155.35/12,209.85 = 5,373.63/x
  3. Step 3: Cross multiply
    8,155.35x = 12,209.85 × 5,373.63
  4. Step 4: Simplify right side
    8,155.35x = 65,611,216.26
  5. Step 5: Solve for x
    x = 65,611,216.26/8,155.35
  6. Step 6: Final answer
    x = 8,045.17

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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.