Home / 11,215.08-15,473.70-7,236.36

Finding the Fourth Proportional to 11,215.08, 15,473.70 and 7,236.36

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Solution

The fourth proportional to 11,215.08, 15,473.70 and 7,236.36 is: 9,984.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.08 : 15,473.70 = 7,236.36 : x
  2. Step 2: Convert to fraction form
    11,215.08/15,473.70 = 7,236.36/x
  3. Step 3: Cross multiply
    11,215.08x = 15,473.70 × 7,236.36
  4. Step 4: Simplify right side
    11,215.08x = 111,973,263.73
  5. Step 5: Solve for x
    x = 111,973,263.73/11,215.08
  6. Step 6: Final answer
    x = 9,984.17

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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.