Home / 13,270.91-19,909.23-4,386.62

Finding the Fourth Proportional to 13,270.91, 19,909.23 and 4,386.62

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Solution

The fourth proportional to 13,270.91, 19,909.23 and 4,386.62 is: 6,580.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.91 : 19,909.23 = 4,386.62 : x
  2. Step 2: Convert to fraction form
    13,270.91/19,909.23 = 4,386.62/x
  3. Step 3: Cross multiply
    13,270.91x = 19,909.23 × 4,386.62
  4. Step 4: Simplify right side
    13,270.91x = 87,334,126.96
  5. Step 5: Solve for x
    x = 87,334,126.96/13,270.91
  6. Step 6: Final answer
    x = 6,580.87

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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.