Home / 12,813.22-19,210.26-8,641.52

Finding the Fourth Proportional to 12,813.22, 19,210.26 and 8,641.52

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Solution

The fourth proportional to 12,813.22, 19,210.26 and 8,641.52 is: 12,955.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,813.22 : 19,210.26 = 8,641.52 : x
  2. Step 2: Convert to fraction form
    12,813.22/19,210.26 = 8,641.52/x
  3. Step 3: Cross multiply
    12,813.22x = 19,210.26 × 8,641.52
  4. Step 4: Simplify right side
    12,813.22x = 166,005,854.39
  5. Step 5: Solve for x
    x = 166,005,854.39/12,813.22
  6. Step 6: Final answer
    x = 12,955.83

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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.