Home / 13,769.22-19,001.19-7,719.06

Finding the Fourth Proportional to 13,769.22, 19,001.19 and 7,719.06

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Solution

The fourth proportional to 13,769.22, 19,001.19 and 7,719.06 is: 10,652.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.22 : 19,001.19 = 7,719.06 : x
  2. Step 2: Convert to fraction form
    13,769.22/19,001.19 = 7,719.06/x
  3. Step 3: Cross multiply
    13,769.22x = 19,001.19 × 7,719.06
  4. Step 4: Simplify right side
    13,769.22x = 146,671,325.68
  5. Step 5: Solve for x
    x = 146,671,325.68/13,769.22
  6. Step 6: Final answer
    x = 10,652.12

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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.