Home / 8,937.45-12,318.82-6,280.25

Finding the Fourth Proportional to 8,937.45, 12,318.82 and 6,280.25

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Solution

The fourth proportional to 8,937.45, 12,318.82 and 6,280.25 is: 8,656.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,937.45 : 12,318.82 = 6,280.25 : x
  2. Step 2: Convert to fraction form
    8,937.45/12,318.82 = 6,280.25/x
  3. Step 3: Cross multiply
    8,937.45x = 12,318.82 × 6,280.25
  4. Step 4: Simplify right side
    8,937.45x = 77,365,192.01
  5. Step 5: Solve for x
    x = 77,365,192.01/8,937.45
  6. Step 6: Final answer
    x = 8,656.29

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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.