Home / 11,009.29-15,199.37-7,239.14

Finding the Fourth Proportional to 11,009.29, 15,199.37 and 7,239.14

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Solution

The fourth proportional to 11,009.29, 15,199.37 and 7,239.14 is: 9,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.29 : 15,199.37 = 7,239.14 : x
  2. Step 2: Convert to fraction form
    11,009.29/15,199.37 = 7,239.14/x
  3. Step 3: Cross multiply
    11,009.29x = 15,199.37 × 7,239.14
  4. Step 4: Simplify right side
    11,009.29x = 110,030,367.34
  5. Step 5: Solve for x
    x = 110,030,367.34/11,009.29
  6. Step 6: Final answer
    x = 9,994.32

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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.