Home / 8,427.51-12,627.68-4,478.67

Finding the Fourth Proportional to 8,427.51, 12,627.68 and 4,478.67

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Solution

The fourth proportional to 8,427.51, 12,627.68 and 4,478.67 is: 6,710.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.51 : 12,627.68 = 4,478.67 : x
  2. Step 2: Convert to fraction form
    8,427.51/12,627.68 = 4,478.67/x
  3. Step 3: Cross multiply
    8,427.51x = 12,627.68 × 4,478.67
  4. Step 4: Simplify right side
    8,427.51x = 56,555,189.19
  5. Step 5: Solve for x
    x = 56,555,189.19/8,427.51
  6. Step 6: Final answer
    x = 6,710.78

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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.