Home / 18,655.02-27,985.56-5,508.72

Finding the Fourth Proportional to 18,655.02, 27,985.56 and 5,508.72

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Solution

The fourth proportional to 18,655.02, 27,985.56 and 5,508.72 is: 8,263.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.02 : 27,985.56 = 5,508.72 : x
  2. Step 2: Convert to fraction form
    18,655.02/27,985.56 = 5,508.72/x
  3. Step 3: Cross multiply
    18,655.02x = 27,985.56 × 5,508.72
  4. Step 4: Simplify right side
    18,655.02x = 154,164,474.16
  5. Step 5: Solve for x
    x = 154,164,474.16/18,655.02
  6. Step 6: Final answer
    x = 8,263.97

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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.