Home / 14,880.96-20,537.28-9,216.96

Finding the Fourth Proportional to 14,880.96, 20,537.28 and 9,216.96

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Solution

The fourth proportional to 14,880.96, 20,537.28 and 9,216.96 is: 12,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,880.96 : 20,537.28 = 9,216.96 : x
  2. Step 2: Convert to fraction form
    14,880.96/20,537.28 = 9,216.96/x
  3. Step 3: Cross multiply
    14,880.96x = 20,537.28 × 9,216.96
  4. Step 4: Simplify right side
    14,880.96x = 189,291,288.27
  5. Step 5: Solve for x
    x = 189,291,288.27/14,880.96
  6. Step 6: Final answer
    x = 12,720.37

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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.