Home / 13,485.34-20,226.57-4,720.42

Finding the Fourth Proportional to 13,485.34, 20,226.57 and 4,720.42

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Solution

The fourth proportional to 13,485.34, 20,226.57 and 4,720.42 is: 7,080.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.34 : 20,226.57 = 4,720.42 : x
  2. Step 2: Convert to fraction form
    13,485.34/20,226.57 = 4,720.42/x
  3. Step 3: Cross multiply
    13,485.34x = 20,226.57 × 4,720.42
  4. Step 4: Simplify right side
    13,485.34x = 95,477,905.56
  5. Step 5: Solve for x
    x = 95,477,905.56/13,485.34
  6. Step 6: Final answer
    x = 7,080.13

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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.