Home / 11,017.14-15,199.64-7,242.32

Finding the Fourth Proportional to 11,017.14, 15,199.64 and 7,242.32

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Solution

The fourth proportional to 11,017.14, 15,199.64 and 7,242.32 is: 9,991.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,017.14 : 15,199.64 = 7,242.32 : x
  2. Step 2: Convert to fraction form
    11,017.14/15,199.64 = 7,242.32/x
  3. Step 3: Cross multiply
    11,017.14x = 15,199.64 × 7,242.32
  4. Step 4: Simplify right side
    11,017.14x = 110,080,656.76
  5. Step 5: Solve for x
    x = 110,080,656.76/11,017.14
  6. Step 6: Final answer
    x = 9,991.76

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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.