Home / 13,948.37-21,018.50-11,537.45

Finding the Fourth Proportional to 13,948.37, 21,018.50 and 11,537.45

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Solution

The fourth proportional to 13,948.37, 21,018.50 and 11,537.45 is: 17,385.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.37 : 21,018.50 = 11,537.45 : x
  2. Step 2: Convert to fraction form
    13,948.37/21,018.50 = 11,537.45/x
  3. Step 3: Cross multiply
    13,948.37x = 21,018.50 × 11,537.45
  4. Step 4: Simplify right side
    13,948.37x = 242,499,730.05
  5. Step 5: Solve for x
    x = 242,499,730.05/13,948.37
  6. Step 6: Final answer
    x = 17,385.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.