Home / 13,875.22-20,862.78-12,792.82

Finding the Fourth Proportional to 13,875.22, 20,862.78 and 12,792.82

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Solution

The fourth proportional to 13,875.22, 20,862.78 and 12,792.82 is: 19,235.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.22 : 20,862.78 = 12,792.82 : x
  2. Step 2: Convert to fraction form
    13,875.22/20,862.78 = 12,792.82/x
  3. Step 3: Cross multiply
    13,875.22x = 20,862.78 × 12,792.82
  4. Step 4: Simplify right side
    13,875.22x = 266,893,789.24
  5. Step 5: Solve for x
    x = 266,893,789.24/13,875.22
  6. Step 6: Final answer
    x = 19,235.28

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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.