Home / 13,769.08-19,002.22-7,719.75

Finding the Fourth Proportional to 13,769.08, 19,002.22 and 7,719.75

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Solution

The fourth proportional to 13,769.08, 19,002.22 and 7,719.75 is: 10,653.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.08 : 19,002.22 = 7,719.75 : x
  2. Step 2: Convert to fraction form
    13,769.08/19,002.22 = 7,719.75/x
  3. Step 3: Cross multiply
    13,769.08x = 19,002.22 × 7,719.75
  4. Step 4: Simplify right side
    13,769.08x = 146,692,368.55
  5. Step 5: Solve for x
    x = 146,692,368.55/13,769.08
  6. Step 6: Final answer
    x = 10,653.75

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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.