Home / 19,355.08-28,983.38-12,761.26

Finding the Fourth Proportional to 19,355.08, 28,983.38 and 12,761.26

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Solution

The fourth proportional to 19,355.08, 28,983.38 and 12,761.26 is: 19,109.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,355.08 : 28,983.38 = 12,761.26 : x
  2. Step 2: Convert to fraction form
    19,355.08/28,983.38 = 12,761.26/x
  3. Step 3: Cross multiply
    19,355.08x = 28,983.38 × 12,761.26
  4. Step 4: Simplify right side
    19,355.08x = 369,864,447.86
  5. Step 5: Solve for x
    x = 369,864,447.86/19,355.08
  6. Step 6: Final answer
    x = 19,109.42

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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.