Home / 7,262.79-10,020.07-5,378.32

Finding the Fourth Proportional to 7,262.79, 10,020.07 and 5,378.32

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Solution

The fourth proportional to 7,262.79, 10,020.07 and 5,378.32 is: 7,420.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,262.79 : 10,020.07 = 5,378.32 : x
  2. Step 2: Convert to fraction form
    7,262.79/10,020.07 = 5,378.32/x
  3. Step 3: Cross multiply
    7,262.79x = 10,020.07 × 5,378.32
  4. Step 4: Simplify right side
    7,262.79x = 53,891,142.88
  5. Step 5: Solve for x
    x = 53,891,142.88/7,262.79
  6. Step 6: Final answer
    x = 7,420.17

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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.