Home / 13,980.92-19,291.05-8,317.04

Finding the Fourth Proportional to 13,980.92, 19,291.05 and 8,317.04

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Solution

The fourth proportional to 13,980.92, 19,291.05 and 8,317.04 is: 11,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.92 : 19,291.05 = 8,317.04 : x
  2. Step 2: Convert to fraction form
    13,980.92/19,291.05 = 8,317.04/x
  3. Step 3: Cross multiply
    13,980.92x = 19,291.05 × 8,317.04
  4. Step 4: Simplify right side
    13,980.92x = 160,444,338.04
  5. Step 5: Solve for x
    x = 160,444,338.04/13,980.92
  6. Step 6: Final answer
    x = 11,475.95

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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.