Home / 19,212.96-26,536-12,828.48

Finding the Fourth Proportional to 19,212.96, 26,536 and 12,828.48

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Solution

The fourth proportional to 19,212.96, 26,536 and 12,828.48 is: 17,718.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.96 : 26,536 = 12,828.48 : x
  2. Step 2: Convert to fraction form
    19,212.96/26,536 = 12,828.48/x
  3. Step 3: Cross multiply
    19,212.96x = 26,536 × 12,828.48
  4. Step 4: Simplify right side
    19,212.96x = 340,416,545.28
  5. Step 5: Solve for x
    x = 340,416,545.28/19,212.96
  6. Step 6: Final answer
    x = 17,718.07

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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.