Home / 13,343.28-18,412.08-7,374.96

Finding the Fourth Proportional to 13,343.28, 18,412.08 and 7,374.96

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Solution

The fourth proportional to 13,343.28, 18,412.08 and 7,374.96 is: 10,176.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.28 : 18,412.08 = 7,374.96 : x
  2. Step 2: Convert to fraction form
    13,343.28/18,412.08 = 7,374.96/x
  3. Step 3: Cross multiply
    13,343.28x = 18,412.08 × 7,374.96
  4. Step 4: Simplify right side
    13,343.28x = 135,788,353.52
  5. Step 5: Solve for x
    x = 135,788,353.52/13,343.28
  6. Step 6: Final answer
    x = 10,176.53

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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.