Home / 13,322.37-18,384.90-7,272.61

Finding the Fourth Proportional to 13,322.37, 18,384.90 and 7,272.61

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Solution

The fourth proportional to 13,322.37, 18,384.90 and 7,272.61 is: 10,036.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.37 : 18,384.90 = 7,272.61 : x
  2. Step 2: Convert to fraction form
    13,322.37/18,384.90 = 7,272.61/x
  3. Step 3: Cross multiply
    13,322.37x = 18,384.90 × 7,272.61
  4. Step 4: Simplify right side
    13,322.37x = 133,706,230.81
  5. Step 5: Solve for x
    x = 133,706,230.81/13,322.37
  6. Step 6: Final answer
    x = 10,036.22

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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.