Home / 13,327.16-18,390.02-7,358.44

Finding the Fourth Proportional to 13,327.16, 18,390.02 and 7,358.44

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Solution

The fourth proportional to 13,327.16, 18,390.02 and 7,358.44 is: 10,153.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.16 : 18,390.02 = 7,358.44 : x
  2. Step 2: Convert to fraction form
    13,327.16/18,390.02 = 7,358.44/x
  3. Step 3: Cross multiply
    13,327.16x = 18,390.02 × 7,358.44
  4. Step 4: Simplify right side
    13,327.16x = 135,321,858.77
  5. Step 5: Solve for x
    x = 135,321,858.77/13,327.16
  6. Step 6: Final answer
    x = 10,153.84

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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.