Home / 14,004.30-21,006.45-4,142.70

Finding the Fourth Proportional to 14,004.30, 21,006.45 and 4,142.70

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Solution

The fourth proportional to 14,004.30, 21,006.45 and 4,142.70 is: 6,214.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,004.30 : 21,006.45 = 4,142.70 : x
  2. Step 2: Convert to fraction form
    14,004.30/21,006.45 = 4,142.70/x
  3. Step 3: Cross multiply
    14,004.30x = 21,006.45 × 4,142.70
  4. Step 4: Simplify right side
    14,004.30x = 87,023,420.42
  5. Step 5: Solve for x
    x = 87,023,420.42/14,004.30
  6. Step 6: Final answer
    x = 6,214.05

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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.