Home / 19,150.29-28,709.91-8,612.60

Finding the Fourth Proportional to 19,150.29, 28,709.91 and 8,612.60

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Solution

The fourth proportional to 19,150.29, 28,709.91 and 8,612.60 is: 12,911.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150.29 : 28,709.91 = 8,612.60 : x
  2. Step 2: Convert to fraction form
    19,150.29/28,709.91 = 8,612.60/x
  3. Step 3: Cross multiply
    19,150.29x = 28,709.91 × 8,612.60
  4. Step 4: Simplify right side
    19,150.29x = 247,266,827.32
  5. Step 5: Solve for x
    x = 247,266,827.32/19,150.29
  6. Step 6: Final answer
    x = 12,911.91

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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.