Home / 13,018.76-19,530.18-4,251.64

Finding the Fourth Proportional to 13,018.76, 19,530.18 and 4,251.64

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Solution

The fourth proportional to 13,018.76, 19,530.18 and 4,251.64 is: 6,378.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.76 : 19,530.18 = 4,251.64 : x
  2. Step 2: Convert to fraction form
    13,018.76/19,530.18 = 4,251.64/x
  3. Step 3: Cross multiply
    13,018.76x = 19,530.18 × 4,251.64
  4. Step 4: Simplify right side
    13,018.76x = 83,035,294.50
  5. Step 5: Solve for x
    x = 83,035,294.50/13,018.76
  6. Step 6: Final answer
    x = 6,378.13

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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.