Home / 7,342.47-11,007.88-3,643.71

Finding the Fourth Proportional to 7,342.47, 11,007.88 and 3,643.71

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Solution

The fourth proportional to 7,342.47, 11,007.88 and 3,643.71 is: 5,462.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.47 : 11,007.88 = 3,643.71 : x
  2. Step 2: Convert to fraction form
    7,342.47/11,007.88 = 3,643.71/x
  3. Step 3: Cross multiply
    7,342.47x = 11,007.88 × 3,643.71
  4. Step 4: Simplify right side
    7,342.47x = 40,109,522.43
  5. Step 5: Solve for x
    x = 40,109,522.43/7,342.47
  6. Step 6: Final answer
    x = 5,462.67

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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.