Home / 13,139.24-19,698.21-8,968.74

Finding the Fourth Proportional to 13,139.24, 19,698.21 and 8,968.74

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Solution

The fourth proportional to 13,139.24, 19,698.21 and 8,968.74 is: 13,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139.24 : 19,698.21 = 8,968.74 : x
  2. Step 2: Convert to fraction form
    13,139.24/19,698.21 = 8,968.74/x
  3. Step 3: Cross multiply
    13,139.24x = 19,698.21 × 8,968.74
  4. Step 4: Simplify right side
    13,139.24x = 176,668,123.96
  5. Step 5: Solve for x
    x = 176,668,123.96/13,139.24
  6. Step 6: Final answer
    x = 13,445.85

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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.