Home / 19,018.18-28,534.02-8,487.24

Finding the Fourth Proportional to 19,018.18, 28,534.02 and 8,487.24

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Solution

The fourth proportional to 19,018.18, 28,534.02 and 8,487.24 is: 12,733.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.18 : 28,534.02 = 8,487.24 : x
  2. Step 2: Convert to fraction form
    19,018.18/28,534.02 = 8,487.24/x
  3. Step 3: Cross multiply
    19,018.18x = 28,534.02 × 8,487.24
  4. Step 4: Simplify right side
    19,018.18x = 242,174,890.80
  5. Step 5: Solve for x
    x = 242,174,890.80/19,018.18
  6. Step 6: Final answer
    x = 12,733.87

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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.