Home / 13,717.95-20,577.69-3,856.47

Finding the Fourth Proportional to 13,717.95, 20,577.69 and 3,856.47

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Solution

The fourth proportional to 13,717.95, 20,577.69 and 3,856.47 is: 5,784.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.95 : 20,577.69 = 3,856.47 : x
  2. Step 2: Convert to fraction form
    13,717.95/20,577.69 = 3,856.47/x
  3. Step 3: Cross multiply
    13,717.95x = 20,577.69 × 3,856.47
  4. Step 4: Simplify right side
    13,717.95x = 79,357,244.15
  5. Step 5: Solve for x
    x = 79,357,244.15/13,717.95
  6. Step 6: Final answer
    x = 5,784.92

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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.