Home / 13,333.85-18,400.60-7,365.47

Finding the Fourth Proportional to 13,333.85, 18,400.60 and 7,365.47

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Solution

The fourth proportional to 13,333.85, 18,400.60 and 7,365.47 is: 10,164.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.85 : 18,400.60 = 7,365.47 : x
  2. Step 2: Convert to fraction form
    13,333.85/18,400.60 = 7,365.47/x
  3. Step 3: Cross multiply
    13,333.85x = 18,400.60 × 7,365.47
  4. Step 4: Simplify right side
    13,333.85x = 135,528,984.49
  5. Step 5: Solve for x
    x = 135,528,984.49/13,333.85
  6. Step 6: Final answer
    x = 10,164.28

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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.