Home / 12,358.04-18,538.91-3,591.81

Finding the Fourth Proportional to 12,358.04, 18,538.91 and 3,591.81

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Solution

The fourth proportional to 12,358.04, 18,538.91 and 3,591.81 is: 5,388.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.04 : 18,538.91 = 3,591.81 : x
  2. Step 2: Convert to fraction form
    12,358.04/18,538.91 = 3,591.81/x
  3. Step 3: Cross multiply
    12,358.04x = 18,538.91 × 3,591.81
  4. Step 4: Simplify right side
    12,358.04x = 66,588,237.84
  5. Step 5: Solve for x
    x = 66,588,237.84/12,358.04
  6. Step 6: Final answer
    x = 5,388.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.