Home / 12,860.00-19,289.98-8,445.53

Finding the Fourth Proportional to 12,860.00, 19,289.98 and 8,445.53

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Solution

The fourth proportional to 12,860.00, 19,289.98 and 8,445.53 is: 12,668.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.00 : 19,289.98 = 8,445.53 : x
  2. Step 2: Convert to fraction form
    12,860.00/19,289.98 = 8,445.53/x
  3. Step 3: Cross multiply
    12,860.00x = 19,289.98 × 8,445.53
  4. Step 4: Simplify right side
    12,860.00x = 162,914,163.57
  5. Step 5: Solve for x
    x = 162,914,163.57/12,860.00
  6. Step 6: Final answer
    x = 12,668.29

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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.