Home / 11,020.11-15,203.95-7,043.55

Finding the Fourth Proportional to 11,020.11, 15,203.95 and 7,043.55

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Solution

The fourth proportional to 11,020.11, 15,203.95 and 7,043.55 is: 9,717.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,020.11 : 15,203.95 = 7,043.55 : x
  2. Step 2: Convert to fraction form
    11,020.11/15,203.95 = 7,043.55/x
  3. Step 3: Cross multiply
    11,020.11x = 15,203.95 × 7,043.55
  4. Step 4: Simplify right side
    11,020.11x = 107,089,782.02
  5. Step 5: Solve for x
    x = 107,089,782.02/11,020.11
  6. Step 6: Final answer
    x = 9,717.67

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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.