Home / 13,471.72-20,158.37-7,927.67

Finding the Fourth Proportional to 13,471.72, 20,158.37 and 7,927.67

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Solution

The fourth proportional to 13,471.72, 20,158.37 and 7,927.67 is: 11,862.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.72 : 20,158.37 = 7,927.67 : x
  2. Step 2: Convert to fraction form
    13,471.72/20,158.37 = 7,927.67/x
  3. Step 3: Cross multiply
    13,471.72x = 20,158.37 × 7,927.67
  4. Step 4: Simplify right side
    13,471.72x = 159,808,945.58
  5. Step 5: Solve for x
    x = 159,808,945.58/13,471.72
  6. Step 6: Final answer
    x = 11,862.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.