Home / 14,405.60-19,879.22-8,437.15

Finding the Fourth Proportional to 14,405.60, 19,879.22 and 8,437.15

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Solution

The fourth proportional to 14,405.60, 19,879.22 and 8,437.15 is: 11,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,405.60 : 19,879.22 = 8,437.15 : x
  2. Step 2: Convert to fraction form
    14,405.60/19,879.22 = 8,437.15/x
  3. Step 3: Cross multiply
    14,405.60x = 19,879.22 × 8,437.15
  4. Step 4: Simplify right side
    14,405.60x = 167,723,961.02
  5. Step 5: Solve for x
    x = 167,723,961.02/14,405.60
  6. Step 6: Final answer
    x = 11,642.97

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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.