Home / 19,718.20-27,211.38-10,765.60

Finding the Fourth Proportional to 19,718.20, 27,211.38 and 10,765.60

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Solution

The fourth proportional to 19,718.20, 27,211.38 and 10,765.60 is: 14,856.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.20 : 27,211.38 = 10,765.60 : x
  2. Step 2: Convert to fraction form
    19,718.20/27,211.38 = 10,765.60/x
  3. Step 3: Cross multiply
    19,718.20x = 27,211.38 × 10,765.60
  4. Step 4: Simplify right side
    19,718.20x = 292,946,832.53
  5. Step 5: Solve for x
    x = 292,946,832.53/19,718.20
  6. Step 6: Final answer
    x = 14,856.67

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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.