Home / 13,330.97-18,396.89-7,668.53

Finding the Fourth Proportional to 13,330.97, 18,396.89 and 7,668.53

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Solution

The fourth proportional to 13,330.97, 18,396.89 and 7,668.53 is: 10,582.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.97 : 18,396.89 = 7,668.53 : x
  2. Step 2: Convert to fraction form
    13,330.97/18,396.89 = 7,668.53/x
  3. Step 3: Cross multiply
    13,330.97x = 18,396.89 × 7,668.53
  4. Step 4: Simplify right side
    13,330.97x = 141,077,064.53
  5. Step 5: Solve for x
    x = 141,077,064.53/13,330.97
  6. Step 6: Final answer
    x = 10,582.66

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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.