Home / 12,775.08-19,136.70-8,394.60

Finding the Fourth Proportional to 12,775.08, 19,136.70 and 8,394.60

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Solution

The fourth proportional to 12,775.08, 19,136.70 and 8,394.60 is: 12,574.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.08 : 19,136.70 = 8,394.60 : x
  2. Step 2: Convert to fraction form
    12,775.08/19,136.70 = 8,394.60/x
  3. Step 3: Cross multiply
    12,775.08x = 19,136.70 × 8,394.60
  4. Step 4: Simplify right side
    12,775.08x = 160,644,941.82
  5. Step 5: Solve for x
    x = 160,644,941.82/12,775.08
  6. Step 6: Final answer
    x = 12,574.87

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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.