Home / 12,741.49-19,090.23-6,902.20

Finding the Fourth Proportional to 12,741.49, 19,090.23 and 6,902.20

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Solution

The fourth proportional to 12,741.49, 19,090.23 and 6,902.20 is: 10,341.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.49 : 19,090.23 = 6,902.20 : x
  2. Step 2: Convert to fraction form
    12,741.49/19,090.23 = 6,902.20/x
  3. Step 3: Cross multiply
    12,741.49x = 19,090.23 × 6,902.20
  4. Step 4: Simplify right side
    12,741.49x = 131,764,585.51
  5. Step 5: Solve for x
    x = 131,764,585.51/12,741.49
  6. Step 6: Final answer
    x = 10,341.38

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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.