Home / 13,955.67-19,258.43-7,668.05

Finding the Fourth Proportional to 13,955.67, 19,258.43 and 7,668.05

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Solution

The fourth proportional to 13,955.67, 19,258.43 and 7,668.05 is: 10,581.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.67 : 19,258.43 = 7,668.05 : x
  2. Step 2: Convert to fraction form
    13,955.67/19,258.43 = 7,668.05/x
  3. Step 3: Cross multiply
    13,955.67x = 19,258.43 × 7,668.05
  4. Step 4: Simplify right side
    13,955.67x = 147,674,469.53
  5. Step 5: Solve for x
    x = 147,674,469.53/13,955.67
  6. Step 6: Final answer
    x = 10,581.68

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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.