Home / 14,719.75-20,313.26-8,432.53

Finding the Fourth Proportional to 14,719.75, 20,313.26 and 8,432.53

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Solution

The fourth proportional to 14,719.75, 20,313.26 and 8,432.53 is: 11,636.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,719.75 : 20,313.26 = 8,432.53 : x
  2. Step 2: Convert to fraction form
    14,719.75/20,313.26 = 8,432.53/x
  3. Step 3: Cross multiply
    14,719.75x = 20,313.26 × 8,432.53
  4. Step 4: Simplify right side
    14,719.75x = 171,292,174.35
  5. Step 5: Solve for x
    x = 171,292,174.35/14,719.75
  6. Step 6: Final answer
    x = 11,636.89

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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.