Home / 19,606.60-29,399.10-8,511.40

Finding the Fourth Proportional to 19,606.60, 29,399.10 and 8,511.40

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Solution

The fourth proportional to 19,606.60, 29,399.10 and 8,511.40 is: 12,762.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,606.60 : 29,399.10 = 8,511.40 : x
  2. Step 2: Convert to fraction form
    19,606.60/29,399.10 = 8,511.40/x
  3. Step 3: Cross multiply
    19,606.60x = 29,399.10 × 8,511.40
  4. Step 4: Simplify right side
    19,606.60x = 250,227,499.74
  5. Step 5: Solve for x
    x = 250,227,499.74/19,606.60
  6. Step 6: Final answer
    x = 12,762.41

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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.