Home / 13,191.08-19,775.55-9,020.93

Finding the Fourth Proportional to 13,191.08, 19,775.55 and 9,020.93

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Solution

The fourth proportional to 13,191.08, 19,775.55 and 9,020.93 is: 13,523.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.08 : 19,775.55 = 9,020.93 : x
  2. Step 2: Convert to fraction form
    13,191.08/19,775.55 = 9,020.93/x
  3. Step 3: Cross multiply
    13,191.08x = 19,775.55 × 9,020.93
  4. Step 4: Simplify right side
    13,191.08x = 178,393,852.26
  5. Step 5: Solve for x
    x = 178,393,852.26/13,191.08
  6. Step 6: Final answer
    x = 13,523.82

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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.