Home / 13,359.51-18,436.05-7,391.06

Finding the Fourth Proportional to 13,359.51, 18,436.05 and 7,391.06

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Solution

The fourth proportional to 13,359.51, 18,436.05 and 7,391.06 is: 10,199.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.51 : 18,436.05 = 7,391.06 : x
  2. Step 2: Convert to fraction form
    13,359.51/18,436.05 = 7,391.06/x
  3. Step 3: Cross multiply
    13,359.51x = 18,436.05 × 7,391.06
  4. Step 4: Simplify right side
    13,359.51x = 136,261,822.58
  5. Step 5: Solve for x
    x = 136,261,822.58/13,359.51
  6. Step 6: Final answer
    x = 10,199.61

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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.