Home / 12,889.06-19,330.44-4,122.16

Finding the Fourth Proportional to 12,889.06, 19,330.44 and 4,122.16

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Solution

The fourth proportional to 12,889.06, 19,330.44 and 4,122.16 is: 6,182.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889.06 : 19,330.44 = 4,122.16 : x
  2. Step 2: Convert to fraction form
    12,889.06/19,330.44 = 4,122.16/x
  3. Step 3: Cross multiply
    12,889.06x = 19,330.44 × 4,122.16
  4. Step 4: Simplify right side
    12,889.06x = 79,683,166.55
  5. Step 5: Solve for x
    x = 79,683,166.55/12,889.06
  6. Step 6: Final answer
    x = 6,182.23

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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.