Home / 9,090.48-13,609.80-7,703.76

Finding the Fourth Proportional to 9,090.48, 13,609.80 and 7,703.76

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Solution

The fourth proportional to 9,090.48, 13,609.80 and 7,703.76 is: 11,533.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.48 : 13,609.80 = 7,703.76 : x
  2. Step 2: Convert to fraction form
    9,090.48/13,609.80 = 7,703.76/x
  3. Step 3: Cross multiply
    9,090.48x = 13,609.80 × 7,703.76
  4. Step 4: Simplify right side
    9,090.48x = 104,846,632.85
  5. Step 5: Solve for x
    x = 104,846,632.85/9,090.48
  6. Step 6: Final answer
    x = 11,533.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.