Home / 13,333.61-18,400.26-7,365.43

Finding the Fourth Proportional to 13,333.61, 18,400.26 and 7,365.43

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Solution

The fourth proportional to 13,333.61, 18,400.26 and 7,365.43 is: 10,164.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.61 : 18,400.26 = 7,365.43 : x
  2. Step 2: Convert to fraction form
    13,333.61/18,400.26 = 7,365.43/x
  3. Step 3: Cross multiply
    13,333.61x = 18,400.26 × 7,365.43
  4. Step 4: Simplify right side
    13,333.61x = 135,525,877.63
  5. Step 5: Solve for x
    x = 135,525,877.63/13,333.61
  6. Step 6: Final answer
    x = 10,164.23

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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.