Home / 18,707.94-25,814.37-11,153.67

Finding the Fourth Proportional to 18,707.94, 25,814.37 and 11,153.67

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Solution

The fourth proportional to 18,707.94, 25,814.37 and 11,153.67 is: 15,390.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.94 : 25,814.37 = 11,153.67 : x
  2. Step 2: Convert to fraction form
    18,707.94/25,814.37 = 11,153.67/x
  3. Step 3: Cross multiply
    18,707.94x = 25,814.37 × 11,153.67
  4. Step 4: Simplify right side
    18,707.94x = 287,924,964.24
  5. Step 5: Solve for x
    x = 287,924,964.24/18,707.94
  6. Step 6: Final answer
    x = 15,390.52

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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.