Home / 13,609.37-20,410.16-5,287.60

Finding the Fourth Proportional to 13,609.37, 20,410.16 and 5,287.60

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Solution

The fourth proportional to 13,609.37, 20,410.16 and 5,287.60 is: 7,929.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.37 : 20,410.16 = 5,287.60 : x
  2. Step 2: Convert to fraction form
    13,609.37/20,410.16 = 5,287.60/x
  3. Step 3: Cross multiply
    13,609.37x = 20,410.16 × 5,287.60
  4. Step 4: Simplify right side
    13,609.37x = 107,920,762.02
  5. Step 5: Solve for x
    x = 107,920,762.02/13,609.37
  6. Step 6: Final answer
    x = 7,929.89

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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.