Home / 14,360.09-19,813.99-8,390.61

Finding the Fourth Proportional to 14,360.09, 19,813.99 and 8,390.61

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Solution

The fourth proportional to 14,360.09, 19,813.99 and 8,390.61 is: 11,577.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,360.09 : 19,813.99 = 8,390.61 : x
  2. Step 2: Convert to fraction form
    14,360.09/19,813.99 = 8,390.61/x
  3. Step 3: Cross multiply
    14,360.09x = 19,813.99 × 8,390.61
  4. Step 4: Simplify right side
    14,360.09x = 166,251,363.56
  5. Step 5: Solve for x
    x = 166,251,363.56/14,360.09
  6. Step 6: Final answer
    x = 11,577.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.