Home / 13,668.93-18,863.51-7,700.81

Finding the Fourth Proportional to 13,668.93, 18,863.51 and 7,700.81

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Solution

The fourth proportional to 13,668.93, 18,863.51 and 7,700.81 is: 10,627.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.93 : 18,863.51 = 7,700.81 : x
  2. Step 2: Convert to fraction form
    13,668.93/18,863.51 = 7,700.81/x
  3. Step 3: Cross multiply
    13,668.93x = 18,863.51 × 7,700.81
  4. Step 4: Simplify right side
    13,668.93x = 145,264,173.62
  5. Step 5: Solve for x
    x = 145,264,173.62/13,668.93
  6. Step 6: Final answer
    x = 10,627.33

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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.