Home / 13,719.63-18,933.47-7,751.18

Finding the Fourth Proportional to 13,719.63, 18,933.47 and 7,751.18

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Solution

The fourth proportional to 13,719.63, 18,933.47 and 7,751.18 is: 10,696.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.63 : 18,933.47 = 7,751.18 : x
  2. Step 2: Convert to fraction form
    13,719.63/18,933.47 = 7,751.18/x
  3. Step 3: Cross multiply
    13,719.63x = 18,933.47 × 7,751.18
  4. Step 4: Simplify right side
    13,719.63x = 146,756,771.64
  5. Step 5: Solve for x
    x = 146,756,771.64/13,719.63
  6. Step 6: Final answer
    x = 10,696.84

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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.