Home / 11,027.40-15,222.48-7,047.60

Finding the Fourth Proportional to 11,027.40, 15,222.48 and 7,047.60

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Solution

The fourth proportional to 11,027.40, 15,222.48 and 7,047.60 is: 9,728.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,027.40 : 15,222.48 = 7,047.60 : x
  2. Step 2: Convert to fraction form
    11,027.40/15,222.48 = 7,047.60/x
  3. Step 3: Cross multiply
    11,027.40x = 15,222.48 × 7,047.60
  4. Step 4: Simplify right side
    11,027.40x = 107,281,950.05
  5. Step 5: Solve for x
    x = 107,281,950.05/11,027.40
  6. Step 6: Final answer
    x = 9,728.67

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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.