Home / 12,500.80-18,752.32-3,615.99

Finding the Fourth Proportional to 12,500.80, 18,752.32 and 3,615.99

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Solution

The fourth proportional to 12,500.80, 18,752.32 and 3,615.99 is: 5,424.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.80 : 18,752.32 = 3,615.99 : x
  2. Step 2: Convert to fraction form
    12,500.80/18,752.32 = 3,615.99/x
  3. Step 3: Cross multiply
    12,500.80x = 18,752.32 × 3,615.99
  4. Step 4: Simplify right side
    12,500.80x = 67,808,201.60
  5. Step 5: Solve for x
    x = 67,808,201.60/12,500.80
  6. Step 6: Final answer
    x = 5,424.31

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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.