Home / 8,919.44-12,306-5,192.72

Finding the Fourth Proportional to 8,919.44, 12,306 and 5,192.72

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Solution

The fourth proportional to 8,919.44, 12,306 and 5,192.72 is: 7,164.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.44 : 12,306 = 5,192.72 : x
  2. Step 2: Convert to fraction form
    8,919.44/12,306 = 5,192.72/x
  3. Step 3: Cross multiply
    8,919.44x = 12,306 × 5,192.72
  4. Step 4: Simplify right side
    8,919.44x = 63,901,612.32
  5. Step 5: Solve for x
    x = 63,901,612.32/8,919.44
  6. Step 6: Final answer
    x = 7,164.31

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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.