Home / 7,931.34-11,902.40-4,236.22

Finding the Fourth Proportional to 7,931.34, 11,902.40 and 4,236.22

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Solution

The fourth proportional to 7,931.34, 11,902.40 and 4,236.22 is: 6,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.34 : 11,902.40 = 4,236.22 : x
  2. Step 2: Convert to fraction form
    7,931.34/11,902.40 = 4,236.22/x
  3. Step 3: Cross multiply
    7,931.34x = 11,902.40 × 4,236.22
  4. Step 4: Simplify right side
    7,931.34x = 50,421,184.93
  5. Step 5: Solve for x
    x = 50,421,184.93/7,931.34
  6. Step 6: Final answer
    x = 6,357.21

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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.