Home / 13,730.16-20,546.02-11,887.63

Finding the Fourth Proportional to 13,730.16, 20,546.02 and 11,887.63

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Solution

The fourth proportional to 13,730.16, 20,546.02 and 11,887.63 is: 17,788.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.16 : 20,546.02 = 11,887.63 : x
  2. Step 2: Convert to fraction form
    13,730.16/20,546.02 = 11,887.63/x
  3. Step 3: Cross multiply
    13,730.16x = 20,546.02 × 11,887.63
  4. Step 4: Simplify right side
    13,730.16x = 244,243,483.73
  5. Step 5: Solve for x
    x = 244,243,483.73/13,730.16
  6. Step 6: Final answer
    x = 17,788.83

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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.