Home / 7,162.24-10,749.12-7,127.68

Finding the Fourth Proportional to 7,162.24, 10,749.12 and 7,127.68

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Solution

The fourth proportional to 7,162.24, 10,749.12 and 7,127.68 is: 10,697.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.24 : 10,749.12 = 7,127.68 : x
  2. Step 2: Convert to fraction form
    7,162.24/10,749.12 = 7,127.68/x
  3. Step 3: Cross multiply
    7,162.24x = 10,749.12 × 7,127.68
  4. Step 4: Simplify right side
    7,162.24x = 76,616,287.64
  5. Step 5: Solve for x
    x = 76,616,287.64/7,162.24
  6. Step 6: Final answer
    x = 10,697.25

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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.