Home / 8,973.45-12,382.88-4,939.49

Finding the Fourth Proportional to 8,973.45, 12,382.88 and 4,939.49

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Solution

The fourth proportional to 8,973.45, 12,382.88 and 4,939.49 is: 6,816.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.45 : 12,382.88 = 4,939.49 : x
  2. Step 2: Convert to fraction form
    8,973.45/12,382.88 = 4,939.49/x
  3. Step 3: Cross multiply
    8,973.45x = 12,382.88 × 4,939.49
  4. Step 4: Simplify right side
    8,973.45x = 61,165,121.24
  5. Step 5: Solve for x
    x = 61,165,121.24/8,973.45
  6. Step 6: Final answer
    x = 6,816.23

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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.