Home / 13,982.85-19,294.16-8,317.80

Finding the Fourth Proportional to 13,982.85, 19,294.16 and 8,317.80

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Solution

The fourth proportional to 13,982.85, 19,294.16 and 8,317.80 is: 11,477.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.85 : 19,294.16 = 8,317.80 : x
  2. Step 2: Convert to fraction form
    13,982.85/19,294.16 = 8,317.80/x
  3. Step 3: Cross multiply
    13,982.85x = 19,294.16 × 8,317.80
  4. Step 4: Simplify right side
    13,982.85x = 160,484,922.46
  5. Step 5: Solve for x
    x = 160,484,922.46/13,982.85
  6. Step 6: Final answer
    x = 11,477.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.