Home / 13,720.95-18,934.91-7,433.33

Finding the Fourth Proportional to 13,720.95, 18,934.91 and 7,433.33

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Solution

The fourth proportional to 13,720.95, 18,934.91 and 7,433.33 is: 10,257.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.95 : 18,934.91 = 7,433.33 : x
  2. Step 2: Convert to fraction form
    13,720.95/18,934.91 = 7,433.33/x
  3. Step 3: Cross multiply
    13,720.95x = 18,934.91 × 7,433.33
  4. Step 4: Simplify right side
    13,720.95x = 140,749,302.71
  5. Step 5: Solve for x
    x = 140,749,302.71/13,720.95
  6. Step 6: Final answer
    x = 10,257.99

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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.