Home / 13,764.18-18,994.58-7,476.56

Finding the Fourth Proportional to 13,764.18, 18,994.58 and 7,476.56

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Solution

The fourth proportional to 13,764.18, 18,994.58 and 7,476.56 is: 10,317.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.18 : 18,994.58 = 7,476.56 : x
  2. Step 2: Convert to fraction form
    13,764.18/18,994.58 = 7,476.56/x
  3. Step 3: Cross multiply
    13,764.18x = 18,994.58 × 7,476.56
  4. Step 4: Simplify right side
    13,764.18x = 142,014,117.04
  5. Step 5: Solve for x
    x = 142,014,117.04/13,764.18
  6. Step 6: Final answer
    x = 10,317.66

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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.