Home / 7,348.21-10,147.68-6,279.67

Finding the Fourth Proportional to 7,348.21, 10,147.68 and 6,279.67

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Solution

The fourth proportional to 7,348.21, 10,147.68 and 6,279.67 is: 8,672.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,348.21 : 10,147.68 = 6,279.67 : x
  2. Step 2: Convert to fraction form
    7,348.21/10,147.68 = 6,279.67/x
  3. Step 3: Cross multiply
    7,348.21x = 10,147.68 × 6,279.67
  4. Step 4: Simplify right side
    7,348.21x = 63,724,081.67
  5. Step 5: Solve for x
    x = 63,724,081.67/7,348.21
  6. Step 6: Final answer
    x = 8,672.06

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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.