Home / 14,020.55-19,343.47-8,987.54

Finding the Fourth Proportional to 14,020.55, 19,343.47 and 8,987.54

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Solution

The fourth proportional to 14,020.55, 19,343.47 and 8,987.54 is: 12,399.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.55 : 19,343.47 = 8,987.54 : x
  2. Step 2: Convert to fraction form
    14,020.55/19,343.47 = 8,987.54/x
  3. Step 3: Cross multiply
    14,020.55x = 19,343.47 × 8,987.54
  4. Step 4: Simplify right side
    14,020.55x = 173,850,165.43
  5. Step 5: Solve for x
    x = 173,850,165.43/14,020.55
  6. Step 6: Final answer
    x = 12,399.67

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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.