Home / 13,668.66-18,876.29-9,430.68

Finding the Fourth Proportional to 13,668.66, 18,876.29 and 9,430.68

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Solution

The fourth proportional to 13,668.66, 18,876.29 and 9,430.68 is: 13,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.66 : 18,876.29 = 9,430.68 : x
  2. Step 2: Convert to fraction form
    13,668.66/18,876.29 = 9,430.68/x
  3. Step 3: Cross multiply
    13,668.66x = 18,876.29 × 9,430.68
  4. Step 4: Simplify right side
    13,668.66x = 178,016,203.42
  5. Step 5: Solve for x
    x = 178,016,203.42/13,668.66
  6. Step 6: Final answer
    x = 13,023.68

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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.