Home / 13,663.26-18,846.63-8,618.67

Finding the Fourth Proportional to 13,663.26, 18,846.63 and 8,618.67

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Solution

The fourth proportional to 13,663.26, 18,846.63 and 8,618.67 is: 11,888.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.26 : 18,846.63 = 8,618.67 : x
  2. Step 2: Convert to fraction form
    13,663.26/18,846.63 = 8,618.67/x
  3. Step 3: Cross multiply
    13,663.26x = 18,846.63 × 8,618.67
  4. Step 4: Simplify right side
    13,663.26x = 162,432,884.58
  5. Step 5: Solve for x
    x = 162,432,884.58/13,663.26
  6. Step 6: Final answer
    x = 11,888.30

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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.