Home / 13,582.08-18,743.64-7,613.64

Finding the Fourth Proportional to 13,582.08, 18,743.64 and 7,613.64

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Solution

The fourth proportional to 13,582.08, 18,743.64 and 7,613.64 is: 10,507.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.08 : 18,743.64 = 7,613.64 : x
  2. Step 2: Convert to fraction form
    13,582.08/18,743.64 = 7,613.64/x
  3. Step 3: Cross multiply
    13,582.08x = 18,743.64 × 7,613.64
  4. Step 4: Simplify right side
    13,582.08x = 142,707,327.25
  5. Step 5: Solve for x
    x = 142,707,327.25/13,582.08
  6. Step 6: Final answer
    x = 10,507.03

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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.