Home / 12,663.66-18,995.28-4,874.16

Finding the Fourth Proportional to 12,663.66, 18,995.28 and 4,874.16

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Solution

The fourth proportional to 12,663.66, 18,995.28 and 4,874.16 is: 7,311.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,663.66 : 18,995.28 = 4,874.16 : x
  2. Step 2: Convert to fraction form
    12,663.66/18,995.28 = 4,874.16/x
  3. Step 3: Cross multiply
    12,663.66x = 18,995.28 × 4,874.16
  4. Step 4: Simplify right side
    12,663.66x = 92,586,033.96
  5. Step 5: Solve for x
    x = 92,586,033.96/12,663.66
  6. Step 6: Final answer
    x = 7,311.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.