Home / 13,136.24-18,134.70-10,145.36

Finding the Fourth Proportional to 13,136.24, 18,134.70 and 10,145.36

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Solution

The fourth proportional to 13,136.24, 18,134.70 and 10,145.36 is: 14,005.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.24 : 18,134.70 = 10,145.36 : x
  2. Step 2: Convert to fraction form
    13,136.24/18,134.70 = 10,145.36/x
  3. Step 3: Cross multiply
    13,136.24x = 18,134.70 × 10,145.36
  4. Step 4: Simplify right side
    13,136.24x = 183,983,059.99
  5. Step 5: Solve for x
    x = 183,983,059.99/13,136.24
  6. Step 6: Final answer
    x = 14,005.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.