Home / 12,591.70-18,875.23-4,688.42

Finding the Fourth Proportional to 12,591.70, 18,875.23 and 4,688.42

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Solution

The fourth proportional to 12,591.70, 18,875.23 and 4,688.42 is: 7,028.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591.70 : 18,875.23 = 4,688.42 : x
  2. Step 2: Convert to fraction form
    12,591.70/18,875.23 = 4,688.42/x
  3. Step 3: Cross multiply
    12,591.70x = 18,875.23 × 4,688.42
  4. Step 4: Simplify right side
    12,591.70x = 88,494,899.74
  5. Step 5: Solve for x
    x = 88,494,899.74/12,591.70
  6. Step 6: Final answer
    x = 7,028.04

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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.