Home / 14,381.20-19,846.34-8,715.76

Finding the Fourth Proportional to 14,381.20, 19,846.34 and 8,715.76

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Solution

The fourth proportional to 14,381.20, 19,846.34 and 8,715.76 is: 12,027.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,381.20 : 19,846.34 = 8,715.76 : x
  2. Step 2: Convert to fraction form
    14,381.20/19,846.34 = 8,715.76/x
  3. Step 3: Cross multiply
    14,381.20x = 19,846.34 × 8,715.76
  4. Step 4: Simplify right side
    14,381.20x = 172,975,936.32
  5. Step 5: Solve for x
    x = 172,975,936.32/14,381.20
  6. Step 6: Final answer
    x = 12,027.92

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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.