Home / 13,362.51-18,437.64-7,393.06

Finding the Fourth Proportional to 13,362.51, 18,437.64 and 7,393.06

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Solution

The fourth proportional to 13,362.51, 18,437.64 and 7,393.06 is: 10,200.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.51 : 18,437.64 = 7,393.06 : x
  2. Step 2: Convert to fraction form
    13,362.51/18,437.64 = 7,393.06/x
  3. Step 3: Cross multiply
    13,362.51x = 18,437.64 × 7,393.06
  4. Step 4: Simplify right side
    13,362.51x = 136,310,578.78
  5. Step 5: Solve for x
    x = 136,310,578.78/13,362.51
  6. Step 6: Final answer
    x = 10,200.97

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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.