Home / 13,038.76-19,543.14-5,635.78

Finding the Fourth Proportional to 13,038.76, 19,543.14 and 5,635.78

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Solution

The fourth proportional to 13,038.76, 19,543.14 and 5,635.78 is: 8,447.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.76 : 19,543.14 = 5,635.78 : x
  2. Step 2: Convert to fraction form
    13,038.76/19,543.14 = 5,635.78/x
  3. Step 3: Cross multiply
    13,038.76x = 19,543.14 × 5,635.78
  4. Step 4: Simplify right side
    13,038.76x = 110,140,837.55
  5. Step 5: Solve for x
    x = 110,140,837.55/13,038.76
  6. Step 6: Final answer
    x = 8,447.19

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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.