Home / 7,120.37-9,812.24-5,127.17

Finding the Fourth Proportional to 7,120.37, 9,812.24 and 5,127.17

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Solution

The fourth proportional to 7,120.37, 9,812.24 and 5,127.17 is: 7,065.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.37 : 9,812.24 = 5,127.17 : x
  2. Step 2: Convert to fraction form
    7,120.37/9,812.24 = 5,127.17/x
  3. Step 3: Cross multiply
    7,120.37x = 9,812.24 × 5,127.17
  4. Step 4: Simplify right side
    7,120.37x = 50,308,967.09
  5. Step 5: Solve for x
    x = 50,308,967.09/7,120.37
  6. Step 6: Final answer
    x = 7,065.50

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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.