Home / 11,612.16-16,022.70-6,897.60

Finding the Fourth Proportional to 11,612.16, 16,022.70 and 6,897.60

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Solution

The fourth proportional to 11,612.16, 16,022.70 and 6,897.60 is: 9,517.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,612.16 : 16,022.70 = 6,897.60 : x
  2. Step 2: Convert to fraction form
    11,612.16/16,022.70 = 6,897.60/x
  3. Step 3: Cross multiply
    11,612.16x = 16,022.70 × 6,897.60
  4. Step 4: Simplify right side
    11,612.16x = 110,518,175.52
  5. Step 5: Solve for x
    x = 110,518,175.52/11,612.16
  6. Step 6: Final answer
    x = 9,517.45

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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.