Home / 8,419.06-11,618.99-4,642.96

Finding the Fourth Proportional to 8,419.06, 11,618.99 and 4,642.96

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Solution

The fourth proportional to 8,419.06, 11,618.99 and 4,642.96 is: 6,407.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.06 : 11,618.99 = 4,642.96 : x
  2. Step 2: Convert to fraction form
    8,419.06/11,618.99 = 4,642.96/x
  3. Step 3: Cross multiply
    8,419.06x = 11,618.99 × 4,642.96
  4. Step 4: Simplify right side
    8,419.06x = 53,946,492.74
  5. Step 5: Solve for x
    x = 53,946,492.74/8,419.06
  6. Step 6: Final answer
    x = 6,407.67

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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.