Home / 13,451.70-18,563.31-7,483.74

Finding the Fourth Proportional to 13,451.70, 18,563.31 and 7,483.74

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Solution

The fourth proportional to 13,451.70, 18,563.31 and 7,483.74 is: 10,327.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.70 : 18,563.31 = 7,483.74 : x
  2. Step 2: Convert to fraction form
    13,451.70/18,563.31 = 7,483.74/x
  3. Step 3: Cross multiply
    13,451.70x = 18,563.31 × 7,483.74
  4. Step 4: Simplify right side
    13,451.70x = 138,922,985.58
  5. Step 5: Solve for x
    x = 138,922,985.58/13,451.70
  6. Step 6: Final answer
    x = 10,327.54

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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.