Home / 13,995.02-20,992.18-5,672.81

Finding the Fourth Proportional to 13,995.02, 20,992.18 and 5,672.81

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Solution

The fourth proportional to 13,995.02, 20,992.18 and 5,672.81 is: 8,509.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.02 : 20,992.18 = 5,672.81 : x
  2. Step 2: Convert to fraction form
    13,995.02/20,992.18 = 5,672.81/x
  3. Step 3: Cross multiply
    13,995.02x = 20,992.18 × 5,672.81
  4. Step 4: Simplify right side
    13,995.02x = 119,084,648.63
  5. Step 5: Solve for x
    x = 119,084,648.63/13,995.02
  6. Step 6: Final answer
    x = 8,509.07

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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.