Home / 13,332.83-18,399.26-7,668.70

Finding the Fourth Proportional to 13,332.83, 18,399.26 and 7,668.70

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Solution

The fourth proportional to 13,332.83, 18,399.26 and 7,668.70 is: 10,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.83 : 18,399.26 = 7,668.70 : x
  2. Step 2: Convert to fraction form
    13,332.83/18,399.26 = 7,668.70/x
  3. Step 3: Cross multiply
    13,332.83x = 18,399.26 × 7,668.70
  4. Step 4: Simplify right side
    13,332.83x = 141,098,378.34
  5. Step 5: Solve for x
    x = 141,098,378.34/13,332.83
  6. Step 6: Final answer
    x = 10,582.78

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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.