Home / 14,390.51-21,557.16-11,255.85

Finding the Fourth Proportional to 14,390.51, 21,557.16 and 11,255.85

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Solution

The fourth proportional to 14,390.51, 21,557.16 and 11,255.85 is: 16,861.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.51 : 21,557.16 = 11,255.85 : x
  2. Step 2: Convert to fraction form
    14,390.51/21,557.16 = 11,255.85/x
  3. Step 3: Cross multiply
    14,390.51x = 21,557.16 × 11,255.85
  4. Step 4: Simplify right side
    14,390.51x = 242,644,159.39
  5. Step 5: Solve for x
    x = 242,644,159.39/14,390.51
  6. Step 6: Final answer
    x = 16,861.41

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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.