Home / 13,341.28-18,405.60-8,623.84

Finding the Fourth Proportional to 13,341.28, 18,405.60 and 8,623.84

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Solution

The fourth proportional to 13,341.28, 18,405.60 and 8,623.84 is: 11,897.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,341.28 : 18,405.60 = 8,623.84 : x
  2. Step 2: Convert to fraction form
    13,341.28/18,405.60 = 8,623.84/x
  3. Step 3: Cross multiply
    13,341.28x = 18,405.60 × 8,623.84
  4. Step 4: Simplify right side
    13,341.28x = 158,726,949.50
  5. Step 5: Solve for x
    x = 158,726,949.50/13,341.28
  6. Step 6: Final answer
    x = 11,897.43

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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.