Home / 12,782.15-19,172.76-6,206.57

Finding the Fourth Proportional to 12,782.15, 19,172.76 and 6,206.57

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Solution

The fourth proportional to 12,782.15, 19,172.76 and 6,206.57 is: 9,309.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782.15 : 19,172.76 = 6,206.57 : x
  2. Step 2: Convert to fraction form
    12,782.15/19,172.76 = 6,206.57/x
  3. Step 3: Cross multiply
    12,782.15x = 19,172.76 × 6,206.57
  4. Step 4: Simplify right side
    12,782.15x = 118,997,077.03
  5. Step 5: Solve for x
    x = 118,997,077.03/12,782.15
  6. Step 6: Final answer
    x = 9,309.63

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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.