Home / 11,133.06-15,374.03-7,161.07

Finding the Fourth Proportional to 11,133.06, 15,374.03 and 7,161.07

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Solution

The fourth proportional to 11,133.06, 15,374.03 and 7,161.07 is: 9,888.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.06 : 15,374.03 = 7,161.07 : x
  2. Step 2: Convert to fraction form
    11,133.06/15,374.03 = 7,161.07/x
  3. Step 3: Cross multiply
    11,133.06x = 15,374.03 × 7,161.07
  4. Step 4: Simplify right side
    11,133.06x = 110,094,392.34
  5. Step 5: Solve for x
    x = 110,094,392.34/11,133.06
  6. Step 6: Final answer
    x = 9,888.96

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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.