Home / 13,276.18-19,909.54-4,389.88

Finding the Fourth Proportional to 13,276.18, 19,909.54 and 4,389.88

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Solution

The fourth proportional to 13,276.18, 19,909.54 and 4,389.88 is: 6,583.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.18 : 19,909.54 = 4,389.88 : x
  2. Step 2: Convert to fraction form
    13,276.18/19,909.54 = 4,389.88/x
  3. Step 3: Cross multiply
    13,276.18x = 19,909.54 × 4,389.88
  4. Step 4: Simplify right side
    13,276.18x = 87,400,491.46
  5. Step 5: Solve for x
    x = 87,400,491.46/13,276.18
  6. Step 6: Final answer
    x = 6,583.26

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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.