Home / 7,915.11-10,922.84-4,330.05

Finding the Fourth Proportional to 7,915.11, 10,922.84 and 4,330.05

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Solution

The fourth proportional to 7,915.11, 10,922.84 and 4,330.05 is: 5,975.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.11 : 10,922.84 = 4,330.05 : x
  2. Step 2: Convert to fraction form
    7,915.11/10,922.84 = 4,330.05/x
  3. Step 3: Cross multiply
    7,915.11x = 10,922.84 × 4,330.05
  4. Step 4: Simplify right side
    7,915.11x = 47,296,421.69
  5. Step 5: Solve for x
    x = 47,296,421.69/7,915.11
  6. Step 6: Final answer
    x = 5,975.46

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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.