Home / 19,215.15-26,512.88-11,665.46

Finding the Fourth Proportional to 19,215.15, 26,512.88 and 11,665.46

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Solution

The fourth proportional to 19,215.15, 26,512.88 and 11,665.46 is: 16,095.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.15 : 26,512.88 = 11,665.46 : x
  2. Step 2: Convert to fraction form
    19,215.15/26,512.88 = 11,665.46/x
  3. Step 3: Cross multiply
    19,215.15x = 26,512.88 × 11,665.46
  4. Step 4: Simplify right side
    19,215.15x = 309,284,750.23
  5. Step 5: Solve for x
    x = 309,284,750.23/19,215.15
  6. Step 6: Final answer
    x = 16,095.88

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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.