Home / 12,818.36-19,223.83-4,920.32

Finding the Fourth Proportional to 12,818.36, 19,223.83 and 4,920.32

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Solution

The fourth proportional to 12,818.36, 19,223.83 and 4,920.32 is: 7,379.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818.36 : 19,223.83 = 4,920.32 : x
  2. Step 2: Convert to fraction form
    12,818.36/19,223.83 = 4,920.32/x
  3. Step 3: Cross multiply
    12,818.36x = 19,223.83 × 4,920.32
  4. Step 4: Simplify right side
    12,818.36x = 94,587,395.23
  5. Step 5: Solve for x
    x = 94,587,395.23/12,818.36
  6. Step 6: Final answer
    x = 7,379.06

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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.