Home / 11,270.82-15,539.55-7,230.51

Finding the Fourth Proportional to 11,270.82, 15,539.55 and 7,230.51

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Solution

The fourth proportional to 11,270.82, 15,539.55 and 7,230.51 is: 9,969.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,270.82 : 15,539.55 = 7,230.51 : x
  2. Step 2: Convert to fraction form
    11,270.82/15,539.55 = 7,230.51/x
  3. Step 3: Cross multiply
    11,270.82x = 15,539.55 × 7,230.51
  4. Step 4: Simplify right side
    11,270.82x = 112,358,871.67
  5. Step 5: Solve for x
    x = 112,358,871.67/11,270.82
  6. Step 6: Final answer
    x = 9,969.01

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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.