Home / 14,943.12-20,629.79-8,976.25

Finding the Fourth Proportional to 14,943.12, 20,629.79 and 8,976.25

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Solution

The fourth proportional to 14,943.12, 20,629.79 and 8,976.25 is: 12,392.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,943.12 : 20,629.79 = 8,976.25 : x
  2. Step 2: Convert to fraction form
    14,943.12/20,629.79 = 8,976.25/x
  3. Step 3: Cross multiply
    14,943.12x = 20,629.79 × 8,976.25
  4. Step 4: Simplify right side
    14,943.12x = 185,178,152.49
  5. Step 5: Solve for x
    x = 185,178,152.49/14,943.12
  6. Step 6: Final answer
    x = 12,392.20

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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.