Home / 19,577.89-27,017.11-11,079.67

Finding the Fourth Proportional to 19,577.89, 27,017.11 and 11,079.67

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Solution

The fourth proportional to 19,577.89, 27,017.11 and 11,079.67 is: 15,289.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,577.89 : 27,017.11 = 11,079.67 : x
  2. Step 2: Convert to fraction form
    19,577.89/27,017.11 = 11,079.67/x
  3. Step 3: Cross multiply
    19,577.89x = 27,017.11 × 11,079.67
  4. Step 4: Simplify right side
    19,577.89x = 299,340,663.15
  5. Step 5: Solve for x
    x = 299,340,663.15/19,577.89
  6. Step 6: Final answer
    x = 15,289.73

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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.