Home / 11,261.18-15,536.64-7,287.32

Finding the Fourth Proportional to 11,261.18, 15,536.64 and 7,287.32

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Solution

The fourth proportional to 11,261.18, 15,536.64 and 7,287.32 is: 10,054.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,261.18 : 15,536.64 = 7,287.32 : x
  2. Step 2: Convert to fraction form
    11,261.18/15,536.64 = 7,287.32/x
  3. Step 3: Cross multiply
    11,261.18x = 15,536.64 × 7,287.32
  4. Step 4: Simplify right side
    11,261.18x = 113,220,467.40
  5. Step 5: Solve for x
    x = 113,220,467.40/11,261.18
  6. Step 6: Final answer
    x = 10,054.05

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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.