Home / 8,976.15-12,386.86-4,997.17

Finding the Fourth Proportional to 8,976.15, 12,386.86 and 4,997.17

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Solution

The fourth proportional to 8,976.15, 12,386.86 and 4,997.17 is: 6,895.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.15 : 12,386.86 = 4,997.17 : x
  2. Step 2: Convert to fraction form
    8,976.15/12,386.86 = 4,997.17/x
  3. Step 3: Cross multiply
    8,976.15x = 12,386.86 × 4,997.17
  4. Step 4: Simplify right side
    8,976.15x = 61,899,220.20
  5. Step 5: Solve for x
    x = 61,899,220.20/8,976.15
  6. Step 6: Final answer
    x = 6,895.97

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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.