Home / 10,853.02-14,976.78-6,137.20

Finding the Fourth Proportional to 10,853.02, 14,976.78 and 6,137.20

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Solution

The fourth proportional to 10,853.02, 14,976.78 and 6,137.20 is: 8,469.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,853.02 : 14,976.78 = 6,137.20 : x
  2. Step 2: Convert to fraction form
    10,853.02/14,976.78 = 6,137.20/x
  3. Step 3: Cross multiply
    10,853.02x = 14,976.78 × 6,137.20
  4. Step 4: Simplify right side
    10,853.02x = 91,915,494.22
  5. Step 5: Solve for x
    x = 91,915,494.22/10,853.02
  6. Step 6: Final answer
    x = 8,469.12

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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.