Home / 12,715.63-19,069.90-7,086.37

Finding the Fourth Proportional to 12,715.63, 19,069.90 and 7,086.37

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Solution

The fourth proportional to 12,715.63, 19,069.90 and 7,086.37 is: 10,627.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.63 : 19,069.90 = 7,086.37 : x
  2. Step 2: Convert to fraction form
    12,715.63/19,069.90 = 7,086.37/x
  3. Step 3: Cross multiply
    12,715.63x = 19,069.90 × 7,086.37
  4. Step 4: Simplify right side
    12,715.63x = 135,136,367.26
  5. Step 5: Solve for x
    x = 135,136,367.26/12,715.63
  6. Step 6: Final answer
    x = 10,627.58

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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.