Home / 19,260.96-28,886.40-5,406.72

Finding the Fourth Proportional to 19,260.96, 28,886.40 and 5,406.72

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Solution

The fourth proportional to 19,260.96, 28,886.40 and 5,406.72 is: 8,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,260.96 : 28,886.40 = 5,406.72 : x
  2. Step 2: Convert to fraction form
    19,260.96/28,886.40 = 5,406.72/x
  3. Step 3: Cross multiply
    19,260.96x = 28,886.40 × 5,406.72
  4. Step 4: Simplify right side
    19,260.96x = 156,180,676.61
  5. Step 5: Solve for x
    x = 156,180,676.61/19,260.96
  6. Step 6: Final answer
    x = 8,108.67

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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.