Home / 19,479.08-29,218.44-8,393.60

Finding the Fourth Proportional to 19,479.08, 29,218.44 and 8,393.60

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Solution

The fourth proportional to 19,479.08, 29,218.44 and 8,393.60 is: 12,590.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,479.08 : 29,218.44 = 8,393.60 : x
  2. Step 2: Convert to fraction form
    19,479.08/29,218.44 = 8,393.60/x
  3. Step 3: Cross multiply
    19,479.08x = 29,218.44 × 8,393.60
  4. Step 4: Simplify right side
    19,479.08x = 245,247,897.98
  5. Step 5: Solve for x
    x = 245,247,897.98/19,479.08
  6. Step 6: Final answer
    x = 12,590.32

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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.