Home / 16,902.88-23,312.28-12,917.68

Finding the Fourth Proportional to 16,902.88, 23,312.28 and 12,917.68

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Solution

The fourth proportional to 16,902.88, 23,312.28 and 12,917.68 is: 17,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,902.88 : 23,312.28 = 12,917.68 : x
  2. Step 2: Convert to fraction form
    16,902.88/23,312.28 = 12,917.68/x
  3. Step 3: Cross multiply
    16,902.88x = 23,312.28 × 12,917.68
  4. Step 4: Simplify right side
    16,902.88x = 301,140,573.11
  5. Step 5: Solve for x
    x = 301,140,573.11/16,902.88
  6. Step 6: Final answer
    x = 17,815.93

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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.