Home / 14,835.02-20,471.82-8,120.51

Finding the Fourth Proportional to 14,835.02, 20,471.82 and 8,120.51

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Solution

The fourth proportional to 14,835.02, 20,471.82 and 8,120.51 is: 11,206.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,835.02 : 20,471.82 = 8,120.51 : x
  2. Step 2: Convert to fraction form
    14,835.02/20,471.82 = 8,120.51/x
  3. Step 3: Cross multiply
    14,835.02x = 20,471.82 × 8,120.51
  4. Step 4: Simplify right side
    14,835.02x = 166,241,516.67
  5. Step 5: Solve for x
    x = 166,241,516.67/14,835.02
  6. Step 6: Final answer
    x = 11,206.02

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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.