Home / 14,400.08-21,600.10-8,239.76

Finding the Fourth Proportional to 14,400.08, 21,600.10 and 8,239.76

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Solution

The fourth proportional to 14,400.08, 21,600.10 and 8,239.76 is: 12,359.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,400.08 : 21,600.10 = 8,239.76 : x
  2. Step 2: Convert to fraction form
    14,400.08/21,600.10 = 8,239.76/x
  3. Step 3: Cross multiply
    14,400.08x = 21,600.10 × 8,239.76
  4. Step 4: Simplify right side
    14,400.08x = 177,979,639.98
  5. Step 5: Solve for x
    x = 177,979,639.98/14,400.08
  6. Step 6: Final answer
    x = 12,359.63

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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.