Home / 18,420.96-27,615.60-7,335.48

Finding the Fourth Proportional to 18,420.96, 27,615.60 and 7,335.48

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Solution

The fourth proportional to 18,420.96, 27,615.60 and 7,335.48 is: 10,996.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.96 : 27,615.60 = 7,335.48 : x
  2. Step 2: Convert to fraction form
    18,420.96/27,615.60 = 7,335.48/x
  3. Step 3: Cross multiply
    18,420.96x = 27,615.60 × 7,335.48
  4. Step 4: Simplify right side
    18,420.96x = 202,573,681.49
  5. Step 5: Solve for x
    x = 202,573,681.49/18,420.96
  6. Step 6: Final answer
    x = 10,996.91

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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.