Home / 13,158.68-19,737.21-4,392.86

Finding the Fourth Proportional to 13,158.68, 19,737.21 and 4,392.86

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Solution

The fourth proportional to 13,158.68, 19,737.21 and 4,392.86 is: 6,589.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158.68 : 19,737.21 = 4,392.86 : x
  2. Step 2: Convert to fraction form
    13,158.68/19,737.21 = 4,392.86/x
  3. Step 3: Cross multiply
    13,158.68x = 19,737.21 × 4,392.86
  4. Step 4: Simplify right side
    13,158.68x = 86,702,800.32
  5. Step 5: Solve for x
    x = 86,702,800.32/13,158.68
  6. Step 6: Final answer
    x = 6,589.02

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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.