Home / 14,503.64-20,015.24-8,130.56

Finding the Fourth Proportional to 14,503.64, 20,015.24 and 8,130.56

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Solution

The fourth proportional to 14,503.64, 20,015.24 and 8,130.56 is: 11,220.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,503.64 : 20,015.24 = 8,130.56 : x
  2. Step 2: Convert to fraction form
    14,503.64/20,015.24 = 8,130.56/x
  3. Step 3: Cross multiply
    14,503.64x = 20,015.24 × 8,130.56
  4. Step 4: Simplify right side
    14,503.64x = 162,734,969.01
  5. Step 5: Solve for x
    x = 162,734,969.01/14,503.64
  6. Step 6: Final answer
    x = 11,220.29

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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.