Home / 13,613.04-20,421.48-4,845.36

Finding the Fourth Proportional to 13,613.04, 20,421.48 and 4,845.36

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Solution

The fourth proportional to 13,613.04, 20,421.48 and 4,845.36 is: 7,268.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.04 : 20,421.48 = 4,845.36 : x
  2. Step 2: Convert to fraction form
    13,613.04/20,421.48 = 4,845.36/x
  3. Step 3: Cross multiply
    13,613.04x = 20,421.48 × 4,845.36
  4. Step 4: Simplify right side
    13,613.04x = 98,949,422.33
  5. Step 5: Solve for x
    x = 98,949,422.33/13,613.04
  6. Step 6: Final answer
    x = 7,268.72

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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.