Home / 13,185.87-18,196.48-7,442.94

Finding the Fourth Proportional to 13,185.87, 18,196.48 and 7,442.94

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Solution

The fourth proportional to 13,185.87, 18,196.48 and 7,442.94 is: 10,271.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.87 : 18,196.48 = 7,442.94 : x
  2. Step 2: Convert to fraction form
    13,185.87/18,196.48 = 7,442.94/x
  3. Step 3: Cross multiply
    13,185.87x = 18,196.48 × 7,442.94
  4. Step 4: Simplify right side
    13,185.87x = 135,435,386.39
  5. Step 5: Solve for x
    x = 135,435,386.39/13,185.87
  6. Step 6: Final answer
    x = 10,271.25

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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.