Home / 12,374.74-18,557.50-5,355.78

Finding the Fourth Proportional to 12,374.74, 18,557.50 and 5,355.78

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Solution

The fourth proportional to 12,374.74, 18,557.50 and 5,355.78 is: 8,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.74 : 18,557.50 = 5,355.78 : x
  2. Step 2: Convert to fraction form
    12,374.74/18,557.50 = 5,355.78/x
  3. Step 3: Cross multiply
    12,374.74x = 18,557.50 × 5,355.78
  4. Step 4: Simplify right side
    12,374.74x = 99,389,887.35
  5. Step 5: Solve for x
    x = 99,389,887.35/12,374.74
  6. Step 6: Final answer
    x = 8,031.67

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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.