Home / 13,998.84-19,311.66-8,699.88

Finding the Fourth Proportional to 13,998.84, 19,311.66 and 8,699.88

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Solution

The fourth proportional to 13,998.84, 19,311.66 and 8,699.88 is: 12,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.84 : 19,311.66 = 8,699.88 : x
  2. Step 2: Convert to fraction form
    13,998.84/19,311.66 = 8,699.88/x
  3. Step 3: Cross multiply
    13,998.84x = 19,311.66 × 8,699.88
  4. Step 4: Simplify right side
    13,998.84x = 168,009,124.60
  5. Step 5: Solve for x
    x = 168,009,124.60/13,998.84
  6. Step 6: Final answer
    x = 12,001.65

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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.