Home / 14,585.33-20,120.85-8,613.02

Finding the Fourth Proportional to 14,585.33, 20,120.85 and 8,613.02

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Solution

The fourth proportional to 14,585.33, 20,120.85 and 8,613.02 is: 11,881.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,585.33 : 20,120.85 = 8,613.02 : x
  2. Step 2: Convert to fraction form
    14,585.33/20,120.85 = 8,613.02/x
  3. Step 3: Cross multiply
    14,585.33x = 20,120.85 × 8,613.02
  4. Step 4: Simplify right side
    14,585.33x = 173,301,182.86
  5. Step 5: Solve for x
    x = 173,301,182.86/14,585.33
  6. Step 6: Final answer
    x = 11,881.89

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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.