Home / 14,147.64-21,113.97-13,575.51

Finding the Fourth Proportional to 14,147.64, 21,113.97 and 13,575.51

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Solution

The fourth proportional to 14,147.64, 21,113.97 and 13,575.51 is: 20,260.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.64 : 21,113.97 = 13,575.51 : x
  2. Step 2: Convert to fraction form
    14,147.64/21,113.97 = 13,575.51/x
  3. Step 3: Cross multiply
    14,147.64x = 21,113.97 × 13,575.51
  4. Step 4: Simplify right side
    14,147.64x = 286,632,910.87
  5. Step 5: Solve for x
    x = 286,632,910.87/14,147.64
  6. Step 6: Final answer
    x = 20,260.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.