Home / 7,970.96-11,953.56-2,705.12

Finding the Fourth Proportional to 7,970.96, 11,953.56 and 2,705.12

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Solution

The fourth proportional to 7,970.96, 11,953.56 and 2,705.12 is: 4,056.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,970.96 : 11,953.56 = 2,705.12 : x
  2. Step 2: Convert to fraction form
    7,970.96/11,953.56 = 2,705.12/x
  3. Step 3: Cross multiply
    7,970.96x = 11,953.56 × 2,705.12
  4. Step 4: Simplify right side
    7,970.96x = 32,335,814.23
  5. Step 5: Solve for x
    x = 32,335,814.23/7,970.96
  6. Step 6: Final answer
    x = 4,056.70

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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.