Home / 14,144.16-19,518.80-7,856.56

Finding the Fourth Proportional to 14,144.16, 19,518.80 and 7,856.56

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Solution

The fourth proportional to 14,144.16, 19,518.80 and 7,856.56 is: 10,841.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144.16 : 19,518.80 = 7,856.56 : x
  2. Step 2: Convert to fraction form
    14,144.16/19,518.80 = 7,856.56/x
  3. Step 3: Cross multiply
    14,144.16x = 19,518.80 × 7,856.56
  4. Step 4: Simplify right side
    14,144.16x = 153,350,623.33
  5. Step 5: Solve for x
    x = 153,350,623.33/14,144.16
  6. Step 6: Final answer
    x = 10,841.97

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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.