Home / 12,774.22-19,136.42-7,210.74

Finding the Fourth Proportional to 12,774.22, 19,136.42 and 7,210.74

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Solution

The fourth proportional to 12,774.22, 19,136.42 and 7,210.74 is: 10,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,774.22 : 19,136.42 = 7,210.74 : x
  2. Step 2: Convert to fraction form
    12,774.22/19,136.42 = 7,210.74/x
  3. Step 3: Cross multiply
    12,774.22x = 19,136.42 × 7,210.74
  4. Step 4: Simplify right side
    12,774.22x = 137,987,749.15
  5. Step 5: Solve for x
    x = 137,987,749.15/12,774.22
  6. Step 6: Final answer
    x = 10,802.05

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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.