Home / 13,719.03-20,581.41-7,798.64

Finding the Fourth Proportional to 13,719.03, 20,581.41 and 7,798.64

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Solution

The fourth proportional to 13,719.03, 20,581.41 and 7,798.64 is: 11,699.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.03 : 20,581.41 = 7,798.64 : x
  2. Step 2: Convert to fraction form
    13,719.03/20,581.41 = 7,798.64/x
  3. Step 3: Cross multiply
    13,719.03x = 20,581.41 × 7,798.64
  4. Step 4: Simplify right side
    13,719.03x = 160,506,889.75
  5. Step 5: Solve for x
    x = 160,506,889.75/13,719.03
  6. Step 6: Final answer
    x = 11,699.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.