Home / 16,500.36-24,762.72-12,129.60

Finding the Fourth Proportional to 16,500.36, 24,762.72 and 12,129.60

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Solution

The fourth proportional to 16,500.36, 24,762.72 and 12,129.60 is: 18,203.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,500.36 : 24,762.72 = 12,129.60 : x
  2. Step 2: Convert to fraction form
    16,500.36/24,762.72 = 12,129.60/x
  3. Step 3: Cross multiply
    16,500.36x = 24,762.72 × 12,129.60
  4. Step 4: Simplify right side
    16,500.36x = 300,361,888.51
  5. Step 5: Solve for x
    x = 300,361,888.51/16,500.36
  6. Step 6: Final answer
    x = 18,203.35

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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.