Home / 14,155.22-21,211.76-10,427.60

Finding the Fourth Proportional to 14,155.22, 21,211.76 and 10,427.60

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Solution

The fourth proportional to 14,155.22, 21,211.76 and 10,427.60 is: 15,625.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.22 : 21,211.76 = 10,427.60 : x
  2. Step 2: Convert to fraction form
    14,155.22/21,211.76 = 10,427.60/x
  3. Step 3: Cross multiply
    14,155.22x = 21,211.76 × 10,427.60
  4. Step 4: Simplify right side
    14,155.22x = 221,187,748.58
  5. Step 5: Solve for x
    x = 221,187,748.58/14,155.22
  6. Step 6: Final answer
    x = 15,625.88

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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.