Home / 13,889.08-19,166.45-7,922.67

Finding the Fourth Proportional to 13,889.08, 19,166.45 and 7,922.67

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Solution

The fourth proportional to 13,889.08, 19,166.45 and 7,922.67 is: 10,933.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.08 : 19,166.45 = 7,922.67 : x
  2. Step 2: Convert to fraction form
    13,889.08/19,166.45 = 7,922.67/x
  3. Step 3: Cross multiply
    13,889.08x = 19,166.45 × 7,922.67
  4. Step 4: Simplify right side
    13,889.08x = 151,849,458.42
  5. Step 5: Solve for x
    x = 151,849,458.42/13,889.08
  6. Step 6: Final answer
    x = 10,933.01

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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.