Home / 14,505.54-20,015.87-8,130.67

Finding the Fourth Proportional to 14,505.54, 20,015.87 and 8,130.67

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Solution

The fourth proportional to 14,505.54, 20,015.87 and 8,130.67 is: 11,219.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,505.54 : 20,015.87 = 8,130.67 : x
  2. Step 2: Convert to fraction form
    14,505.54/20,015.87 = 8,130.67/x
  3. Step 3: Cross multiply
    14,505.54x = 20,015.87 × 8,130.67
  4. Step 4: Simplify right side
    14,505.54x = 162,742,433.73
  5. Step 5: Solve for x
    x = 162,742,433.73/14,505.54
  6. Step 6: Final answer
    x = 11,219.33

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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.