Home / 19,728.01-29,591.55-9,186.67

Finding the Fourth Proportional to 19,728.01, 29,591.55 and 9,186.67

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Solution

The fourth proportional to 19,728.01, 29,591.55 and 9,186.67 is: 13,779.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.01 : 29,591.55 = 9,186.67 : x
  2. Step 2: Convert to fraction form
    19,728.01/29,591.55 = 9,186.67/x
  3. Step 3: Cross multiply
    19,728.01x = 29,591.55 × 9,186.67
  4. Step 4: Simplify right side
    19,728.01x = 271,847,804.64
  5. Step 5: Solve for x
    x = 271,847,804.64/19,728.01
  6. Step 6: Final answer
    x = 13,779.79

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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.