Home / 13,139.74-19,698.96-8,969.24

Finding the Fourth Proportional to 13,139.74, 19,698.96 and 8,969.24

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Solution

The fourth proportional to 13,139.74, 19,698.96 and 8,969.24 is: 13,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139.74 : 19,698.96 = 8,969.24 : x
  2. Step 2: Convert to fraction form
    13,139.74/19,698.96 = 8,969.24/x
  3. Step 3: Cross multiply
    13,139.74x = 19,698.96 × 8,969.24
  4. Step 4: Simplify right side
    13,139.74x = 176,684,699.99
  5. Step 5: Solve for x
    x = 176,684,699.99/13,139.74
  6. Step 6: Final answer
    x = 13,446.60

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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.