Home / 14,687.22-20,268.70-8,718.91

Finding the Fourth Proportional to 14,687.22, 20,268.70 and 8,718.91

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Solution

The fourth proportional to 14,687.22, 20,268.70 and 8,718.91 is: 12,032.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687.22 : 20,268.70 = 8,718.91 : x
  2. Step 2: Convert to fraction form
    14,687.22/20,268.70 = 8,718.91/x
  3. Step 3: Cross multiply
    14,687.22x = 20,268.70 × 8,718.91
  4. Step 4: Simplify right side
    14,687.22x = 176,720,869.77
  5. Step 5: Solve for x
    x = 176,720,869.77/14,687.22
  6. Step 6: Final answer
    x = 12,032.29

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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.