Home / 11,357.18-15,656.67-7,989.54

Finding the Fourth Proportional to 11,357.18, 15,656.67 and 7,989.54

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Solution

The fourth proportional to 11,357.18, 15,656.67 and 7,989.54 is: 11,014.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,357.18 : 15,656.67 = 7,989.54 : x
  2. Step 2: Convert to fraction form
    11,357.18/15,656.67 = 7,989.54/x
  3. Step 3: Cross multiply
    11,357.18x = 15,656.67 × 7,989.54
  4. Step 4: Simplify right side
    11,357.18x = 125,089,591.23
  5. Step 5: Solve for x
    x = 125,089,591.23/11,357.18
  6. Step 6: Final answer
    x = 11,014.14

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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.