Home / 14,647.19-21,970.80-8,447.72

Finding the Fourth Proportional to 14,647.19, 21,970.80 and 8,447.72

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Solution

The fourth proportional to 14,647.19, 21,970.80 and 8,447.72 is: 12,671.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,647.19 : 21,970.80 = 8,447.72 : x
  2. Step 2: Convert to fraction form
    14,647.19/21,970.80 = 8,447.72/x
  3. Step 3: Cross multiply
    14,647.19x = 21,970.80 × 8,447.72
  4. Step 4: Simplify right side
    14,647.19x = 185,603,056.72
  5. Step 5: Solve for x
    x = 185,603,056.72/14,647.19
  6. Step 6: Final answer
    x = 12,671.59

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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.