Home / 13,333.17-18,400.19-7,365.23

Finding the Fourth Proportional to 13,333.17, 18,400.19 and 7,365.23

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Solution

The fourth proportional to 13,333.17, 18,400.19 and 7,365.23 is: 10,164.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.17 : 18,400.19 = 7,365.23 : x
  2. Step 2: Convert to fraction form
    13,333.17/18,400.19 = 7,365.23/x
  3. Step 3: Cross multiply
    13,333.17x = 18,400.19 × 7,365.23
  4. Step 4: Simplify right side
    13,333.17x = 135,521,631.39
  5. Step 5: Solve for x
    x = 135,521,631.39/13,333.17
  6. Step 6: Final answer
    x = 10,164.25

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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.