Home / 13,136.40-19,712.16-7,292.52

Finding the Fourth Proportional to 13,136.40, 19,712.16 and 7,292.52

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Solution

The fourth proportional to 13,136.40, 19,712.16 and 7,292.52 is: 10,942.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.40 : 19,712.16 = 7,292.52 : x
  2. Step 2: Convert to fraction form
    13,136.40/19,712.16 = 7,292.52/x
  3. Step 3: Cross multiply
    13,136.40x = 19,712.16 × 7,292.52
  4. Step 4: Simplify right side
    13,136.40x = 143,751,321.04
  5. Step 5: Solve for x
    x = 143,751,321.04/13,136.40
  6. Step 6: Final answer
    x = 10,942.98

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1.5x scale

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.