Home / 12,881.13-19,317.59-4,113.99

Finding the Fourth Proportional to 12,881.13, 19,317.59 and 4,113.99

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Solution

The fourth proportional to 12,881.13, 19,317.59 and 4,113.99 is: 6,169.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,881.13 : 19,317.59 = 4,113.99 : x
  2. Step 2: Convert to fraction form
    12,881.13/19,317.59 = 4,113.99/x
  3. Step 3: Cross multiply
    12,881.13x = 19,317.59 × 4,113.99
  4. Step 4: Simplify right side
    12,881.13x = 79,472,366.94
  5. Step 5: Solve for x
    x = 79,472,366.94/12,881.13
  6. Step 6: Final answer
    x = 6,169.68

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1.5x scale

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.