Home / 14,245.86-21,371.20-4,886.78

Finding the Fourth Proportional to 14,245.86, 21,371.20 and 4,886.78

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Solution

The fourth proportional to 14,245.86, 21,371.20 and 4,886.78 is: 7,331.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,245.86 : 21,371.20 = 4,886.78 : x
  2. Step 2: Convert to fraction form
    14,245.86/21,371.20 = 4,886.78/x
  3. Step 3: Cross multiply
    14,245.86x = 21,371.20 × 4,886.78
  4. Step 4: Simplify right side
    14,245.86x = 104,436,352.74
  5. Step 5: Solve for x
    x = 104,436,352.74/14,245.86
  6. Step 6: Final answer
    x = 7,331.00

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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.