Home / 12,536.40-18,804.56-3,771.30

Finding the Fourth Proportional to 12,536.40, 18,804.56 and 3,771.30

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Solution

The fourth proportional to 12,536.40, 18,804.56 and 3,771.30 is: 5,656.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,536.40 : 18,804.56 = 3,771.30 : x
  2. Step 2: Convert to fraction form
    12,536.40/18,804.56 = 3,771.30/x
  3. Step 3: Cross multiply
    12,536.40x = 18,804.56 × 3,771.30
  4. Step 4: Simplify right side
    12,536.40x = 70,917,637.13
  5. Step 5: Solve for x
    x = 70,917,637.13/12,536.40
  6. Step 6: Final answer
    x = 5,656.94

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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.