Home / 14,015.72-21,023.50-4,155.78

Finding the Fourth Proportional to 14,015.72, 21,023.50 and 4,155.78

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Solution

The fourth proportional to 14,015.72, 21,023.50 and 4,155.78 is: 6,233.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.72 : 21,023.50 = 4,155.78 : x
  2. Step 2: Convert to fraction form
    14,015.72/21,023.50 = 4,155.78/x
  3. Step 3: Cross multiply
    14,015.72x = 21,023.50 × 4,155.78
  4. Step 4: Simplify right side
    14,015.72x = 87,369,040.83
  5. Step 5: Solve for x
    x = 87,369,040.83/14,015.72
  6. Step 6: Final answer
    x = 6,233.65

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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.