Home / 14,861.20-22,291.80-12,557.20

Finding the Fourth Proportional to 14,861.20, 22,291.80 and 12,557.20

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Solution

The fourth proportional to 14,861.20, 22,291.80 and 12,557.20 is: 18,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,861.20 : 22,291.80 = 12,557.20 : x
  2. Step 2: Convert to fraction form
    14,861.20/22,291.80 = 12,557.20/x
  3. Step 3: Cross multiply
    14,861.20x = 22,291.80 × 12,557.20
  4. Step 4: Simplify right side
    14,861.20x = 279,922,590.96
  5. Step 5: Solve for x
    x = 279,922,590.96/14,861.20
  6. Step 6: Final answer
    x = 18,835.80

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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.