Home / 18,770.63-25,900.91-11,215.37

Finding the Fourth Proportional to 18,770.63, 25,900.91 and 11,215.37

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Solution

The fourth proportional to 18,770.63, 25,900.91 and 11,215.37 is: 15,475.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.63 : 25,900.91 = 11,215.37 : x
  2. Step 2: Convert to fraction form
    18,770.63/25,900.91 = 11,215.37/x
  3. Step 3: Cross multiply
    18,770.63x = 25,900.91 × 11,215.37
  4. Step 4: Simplify right side
    18,770.63x = 290,488,159.48
  5. Step 5: Solve for x
    x = 290,488,159.48/18,770.63
  6. Step 6: Final answer
    x = 15,475.67

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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.