Home / 14,586.30-20,131.20-9,288.90

Finding the Fourth Proportional to 14,586.30, 20,131.20 and 9,288.90

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Solution

The fourth proportional to 14,586.30, 20,131.20 and 9,288.90 is: 12,820.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,586.30 : 20,131.20 = 9,288.90 : x
  2. Step 2: Convert to fraction form
    14,586.30/20,131.20 = 9,288.90/x
  3. Step 3: Cross multiply
    14,586.30x = 20,131.20 × 9,288.90
  4. Step 4: Simplify right side
    14,586.30x = 186,996,703.68
  5. Step 5: Solve for x
    x = 186,996,703.68/14,586.30
  6. Step 6: Final answer
    x = 12,820.02

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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.