Home / 18,886.76-28,333.38-5,740.46

Finding the Fourth Proportional to 18,886.76, 28,333.38 and 5,740.46

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Solution

The fourth proportional to 18,886.76, 28,333.38 and 5,740.46 is: 8,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.76 : 28,333.38 = 5,740.46 : x
  2. Step 2: Convert to fraction form
    18,886.76/28,333.38 = 5,740.46/x
  3. Step 3: Cross multiply
    18,886.76x = 28,333.38 × 5,740.46
  4. Step 4: Simplify right side
    18,886.76x = 162,646,634.55
  5. Step 5: Solve for x
    x = 162,646,634.55/18,886.76
  6. Step 6: Final answer
    x = 8,611.67

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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.