Home / 19,005.48-28,514.36-9,143.44

Finding the Fourth Proportional to 19,005.48, 28,514.36 and 9,143.44

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Solution

The fourth proportional to 19,005.48, 28,514.36 and 9,143.44 is: 13,718.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.48 : 28,514.36 = 9,143.44 : x
  2. Step 2: Convert to fraction form
    19,005.48/28,514.36 = 9,143.44/x
  3. Step 3: Cross multiply
    19,005.48x = 28,514.36 × 9,143.44
  4. Step 4: Simplify right side
    19,005.48x = 260,719,339.80
  5. Step 5: Solve for x
    x = 260,719,339.80/19,005.48
  6. Step 6: Final answer
    x = 13,718.11

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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.