Home / 13,344.40-18,411.96-8,623

Finding the Fourth Proportional to 13,344.40, 18,411.96 and 8,623

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Solution

The fourth proportional to 13,344.40, 18,411.96 and 8,623 is: 11,897.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.40 : 18,411.96 = 8,623 : x
  2. Step 2: Convert to fraction form
    13,344.40/18,411.96 = 8,623/x
  3. Step 3: Cross multiply
    13,344.40x = 18,411.96 × 8,623
  4. Step 4: Simplify right side
    13,344.40x = 158,766,331.08
  5. Step 5: Solve for x
    x = 158,766,331.08/13,344.40
  6. Step 6: Final answer
    x = 11,897.60

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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.