Home / 14,719.89-20,313.55-8,005.59

Finding the Fourth Proportional to 14,719.89, 20,313.55 and 8,005.59

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Solution

The fourth proportional to 14,719.89, 20,313.55 and 8,005.59 is: 11,047.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,719.89 : 20,313.55 = 8,005.59 : x
  2. Step 2: Convert to fraction form
    14,719.89/20,313.55 = 8,005.59/x
  3. Step 3: Cross multiply
    14,719.89x = 20,313.55 × 8,005.59
  4. Step 4: Simplify right side
    14,719.89x = 162,621,912.72
  5. Step 5: Solve for x
    x = 162,621,912.72/14,719.89
  6. Step 6: Final answer
    x = 11,047.77

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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.