Home / 18,457.20-27,652.37-8,470.31

Finding the Fourth Proportional to 18,457.20, 27,652.37 and 8,470.31

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Solution

The fourth proportional to 18,457.20, 27,652.37 and 8,470.31 is: 12,690.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.20 : 27,652.37 = 8,470.31 : x
  2. Step 2: Convert to fraction form
    18,457.20/27,652.37 = 8,470.31/x
  3. Step 3: Cross multiply
    18,457.20x = 27,652.37 × 8,470.31
  4. Step 4: Simplify right side
    18,457.20x = 234,224,146.13
  5. Step 5: Solve for x
    x = 234,224,146.13/18,457.20
  6. Step 6: Final answer
    x = 12,690.12

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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.