Home / 7,477.54-11,218.14-3,779.69

Finding the Fourth Proportional to 7,477.54, 11,218.14 and 3,779.69

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Solution

The fourth proportional to 7,477.54, 11,218.14 and 3,779.69 is: 5,670.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.54 : 11,218.14 = 3,779.69 : x
  2. Step 2: Convert to fraction form
    7,477.54/11,218.14 = 3,779.69/x
  3. Step 3: Cross multiply
    7,477.54x = 11,218.14 × 3,779.69
  4. Step 4: Simplify right side
    7,477.54x = 42,401,035.49
  5. Step 5: Solve for x
    x = 42,401,035.49/7,477.54
  6. Step 6: Final answer
    x = 5,670.45

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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.