Home / 13,312.89-19,969.07-3,451.82

Finding the Fourth Proportional to 13,312.89, 19,969.07 and 3,451.82

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Solution

The fourth proportional to 13,312.89, 19,969.07 and 3,451.82 is: 5,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.89 : 19,969.07 = 3,451.82 : x
  2. Step 2: Convert to fraction form
    13,312.89/19,969.07 = 3,451.82/x
  3. Step 3: Cross multiply
    13,312.89x = 19,969.07 × 3,451.82
  4. Step 4: Simplify right side
    13,312.89x = 68,929,518.10
  5. Step 5: Solve for x
    x = 68,929,518.10/13,312.89
  6. Step 6: Final answer
    x = 5,177.65

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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.