Home / 15,774.44-21,768.74-9,061.36

Finding the Fourth Proportional to 15,774.44, 21,768.74 and 9,061.36

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Solution

The fourth proportional to 15,774.44, 21,768.74 and 9,061.36 is: 12,504.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,774.44 : 21,768.74 = 9,061.36 : x
  2. Step 2: Convert to fraction form
    15,774.44/21,768.74 = 9,061.36/x
  3. Step 3: Cross multiply
    15,774.44x = 21,768.74 × 9,061.36
  4. Step 4: Simplify right side
    15,774.44x = 197,254,421.65
  5. Step 5: Solve for x
    x = 197,254,421.65/15,774.44
  6. Step 6: Final answer
    x = 12,504.69

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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.