Home / 8,976.88-12,386.64-4,998

Finding the Fourth Proportional to 8,976.88, 12,386.64 and 4,998

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Solution

The fourth proportional to 8,976.88, 12,386.64 and 4,998 is: 6,896.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.88 : 12,386.64 = 4,998 : x
  2. Step 2: Convert to fraction form
    8,976.88/12,386.64 = 4,998/x
  3. Step 3: Cross multiply
    8,976.88x = 12,386.64 × 4,998
  4. Step 4: Simplify right side
    8,976.88x = 61,908,426.72
  5. Step 5: Solve for x
    x = 61,908,426.72/8,976.88
  6. Step 6: Final answer
    x = 6,896.43

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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.