Home / 18,840.48-28,269.36-9,612.96

Finding the Fourth Proportional to 18,840.48, 28,269.36 and 9,612.96

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Solution

The fourth proportional to 18,840.48, 28,269.36 and 9,612.96 is: 14,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.48 : 28,269.36 = 9,612.96 : x
  2. Step 2: Convert to fraction form
    18,840.48/28,269.36 = 9,612.96/x
  3. Step 3: Cross multiply
    18,840.48x = 28,269.36 × 9,612.96
  4. Step 4: Simplify right side
    18,840.48x = 271,752,226.91
  5. Step 5: Solve for x
    x = 271,752,226.91/18,840.48
  6. Step 6: Final answer
    x = 14,423.85

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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.