Home / 17,655.99-26,420.52-12,964.36

Finding the Fourth Proportional to 17,655.99, 26,420.52 and 12,964.36

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Solution

The fourth proportional to 17,655.99, 26,420.52 and 12,964.36 is: 19,399.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,655.99 : 26,420.52 = 12,964.36 : x
  2. Step 2: Convert to fraction form
    17,655.99/26,420.52 = 12,964.36/x
  3. Step 3: Cross multiply
    17,655.99x = 26,420.52 × 12,964.36
  4. Step 4: Simplify right side
    17,655.99x = 342,525,132.67
  5. Step 5: Solve for x
    x = 342,525,132.67/17,655.99
  6. Step 6: Final answer
    x = 19,399.94

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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.