Home / 13,318.90-19,973.16-4,994.38

Finding the Fourth Proportional to 13,318.90, 19,973.16 and 4,994.38

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Solution

The fourth proportional to 13,318.90, 19,973.16 and 4,994.38 is: 7,489.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.90 : 19,973.16 = 4,994.38 : x
  2. Step 2: Convert to fraction form
    13,318.90/19,973.16 = 4,994.38/x
  3. Step 3: Cross multiply
    13,318.90x = 19,973.16 × 4,994.38
  4. Step 4: Simplify right side
    13,318.90x = 99,753,550.84
  5. Step 5: Solve for x
    x = 99,753,550.84/13,318.90
  6. Step 6: Final answer
    x = 7,489.62

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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.