Home / 13,573.08-18,729.57-9,327.87

Finding the Fourth Proportional to 13,573.08, 18,729.57 and 9,327.87

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Solution

The fourth proportional to 13,573.08, 18,729.57 and 9,327.87 is: 12,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.08 : 18,729.57 = 9,327.87 : x
  2. Step 2: Convert to fraction form
    13,573.08/18,729.57 = 9,327.87/x
  3. Step 3: Cross multiply
    13,573.08x = 18,729.57 × 9,327.87
  4. Step 4: Simplify right side
    13,573.08x = 174,706,994.12
  5. Step 5: Solve for x
    x = 174,706,994.12/13,573.08
  6. Step 6: Final answer
    x = 12,871.58

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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.