Home / 14,000.10-21,000.96-5,679.78

Finding the Fourth Proportional to 14,000.10, 21,000.96 and 5,679.78

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Solution

The fourth proportional to 14,000.10, 21,000.96 and 5,679.78 is: 8,520.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.10 : 21,000.96 = 5,679.78 : x
  2. Step 2: Convert to fraction form
    14,000.10/21,000.96 = 5,679.78/x
  3. Step 3: Cross multiply
    14,000.10x = 21,000.96 × 5,679.78
  4. Step 4: Simplify right side
    14,000.10x = 119,280,832.59
  5. Step 5: Solve for x
    x = 119,280,832.59/14,000.10
  6. Step 6: Final answer
    x = 8,520.00

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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.