Home / 13,586.55-20,369.56-8,907.74

Finding the Fourth Proportional to 13,586.55, 20,369.56 and 8,907.74

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Solution

The fourth proportional to 13,586.55, 20,369.56 and 8,907.74 is: 13,354.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.55 : 20,369.56 = 8,907.74 : x
  2. Step 2: Convert to fraction form
    13,586.55/20,369.56 = 8,907.74/x
  3. Step 3: Cross multiply
    13,586.55x = 20,369.56 × 8,907.74
  4. Step 4: Simplify right side
    13,586.55x = 181,446,713.37
  5. Step 5: Solve for x
    x = 181,446,713.37/13,586.55
  6. Step 6: Final answer
    x = 13,354.88

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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.