Home / 12,060.32-18,099.74-5,398.88

Finding the Fourth Proportional to 12,060.32, 18,099.74 and 5,398.88

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Solution

The fourth proportional to 12,060.32, 18,099.74 and 5,398.88 is: 8,102.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,060.32 : 18,099.74 = 5,398.88 : x
  2. Step 2: Convert to fraction form
    12,060.32/18,099.74 = 5,398.88/x
  3. Step 3: Cross multiply
    12,060.32x = 18,099.74 × 5,398.88
  4. Step 4: Simplify right side
    12,060.32x = 97,718,324.29
  5. Step 5: Solve for x
    x = 97,718,324.29/12,060.32
  6. Step 6: Final answer
    x = 8,102.47

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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.