Home / 7,907.32-10,911.76-4,322.21

Finding the Fourth Proportional to 7,907.32, 10,911.76 and 4,322.21

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Solution

The fourth proportional to 7,907.32, 10,911.76 and 4,322.21 is: 5,964.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.32 : 10,911.76 = 4,322.21 : x
  2. Step 2: Convert to fraction form
    7,907.32/10,911.76 = 4,322.21/x
  3. Step 3: Cross multiply
    7,907.32x = 10,911.76 × 4,322.21
  4. Step 4: Simplify right side
    7,907.32x = 47,162,938.52
  5. Step 5: Solve for x
    x = 47,162,938.52/7,907.32
  6. Step 6: Final answer
    x = 5,964.47

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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.