Home / 12,922.12-19,389.66-5,133.16

Finding the Fourth Proportional to 12,922.12, 19,389.66 and 5,133.16

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Solution

The fourth proportional to 12,922.12, 19,389.66 and 5,133.16 is: 7,702.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.12 : 19,389.66 = 5,133.16 : x
  2. Step 2: Convert to fraction form
    12,922.12/19,389.66 = 5,133.16/x
  3. Step 3: Cross multiply
    12,922.12x = 19,389.66 × 5,133.16
  4. Step 4: Simplify right side
    12,922.12x = 99,530,227.13
  5. Step 5: Solve for x
    x = 99,530,227.13/12,922.12
  6. Step 6: Final answer
    x = 7,702.31

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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.