Home / 8,690.89-13,038.33-3,693.41

Finding the Fourth Proportional to 8,690.89, 13,038.33 and 3,693.41

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Solution

The fourth proportional to 8,690.89, 13,038.33 and 3,693.41 is: 5,540.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.89 : 13,038.33 = 3,693.41 : x
  2. Step 2: Convert to fraction form
    8,690.89/13,038.33 = 3,693.41/x
  3. Step 3: Cross multiply
    8,690.89x = 13,038.33 × 3,693.41
  4. Step 4: Simplify right side
    8,690.89x = 48,155,931.00
  5. Step 5: Solve for x
    x = 48,155,931.00/8,690.89
  6. Step 6: Final answer
    x = 5,540.97

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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.