Home / 19,108.92-28,612.62-12,859.32

Finding the Fourth Proportional to 19,108.92, 28,612.62 and 12,859.32

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Solution

The fourth proportional to 19,108.92, 28,612.62 and 12,859.32 is: 19,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,108.92 : 28,612.62 = 12,859.32 : x
  2. Step 2: Convert to fraction form
    19,108.92/28,612.62 = 12,859.32/x
  3. Step 3: Cross multiply
    19,108.92x = 28,612.62 × 12,859.32
  4. Step 4: Simplify right side
    19,108.92x = 367,938,836.62
  5. Step 5: Solve for x
    x = 367,938,836.62/19,108.92
  6. Step 6: Final answer
    x = 19,254.82

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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.