Home / 14,871.32-20,518.24-8,495.60

Finding the Fourth Proportional to 14,871.32, 20,518.24 and 8,495.60

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Solution

The fourth proportional to 14,871.32, 20,518.24 and 8,495.60 is: 11,721.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,871.32 : 20,518.24 = 8,495.60 : x
  2. Step 2: Convert to fraction form
    14,871.32/20,518.24 = 8,495.60/x
  3. Step 3: Cross multiply
    14,871.32x = 20,518.24 × 8,495.60
  4. Step 4: Simplify right side
    14,871.32x = 174,314,786.64
  5. Step 5: Solve for x
    x = 174,314,786.64/14,871.32
  6. Step 6: Final answer
    x = 11,721.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.