Home / 14,405.04-19,879.56-8,435.88

Finding the Fourth Proportional to 14,405.04, 19,879.56 and 8,435.88

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Solution

The fourth proportional to 14,405.04, 19,879.56 and 8,435.88 is: 11,641.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,405.04 : 19,879.56 = 8,435.88 : x
  2. Step 2: Convert to fraction form
    14,405.04/19,879.56 = 8,435.88/x
  3. Step 3: Cross multiply
    14,405.04x = 19,879.56 × 8,435.88
  4. Step 4: Simplify right side
    14,405.04x = 167,701,582.61
  5. Step 5: Solve for x
    x = 167,701,582.61/14,405.04
  6. Step 6: Final answer
    x = 11,641.87

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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.