Home / 14,084.65-21,123.60-8,148.70

Finding the Fourth Proportional to 14,084.65, 21,123.60 and 8,148.70

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Solution

The fourth proportional to 14,084.65, 21,123.60 and 8,148.70 is: 12,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,084.65 : 21,123.60 = 8,148.70 : x
  2. Step 2: Convert to fraction form
    14,084.65/21,123.60 = 8,148.70/x
  3. Step 3: Cross multiply
    14,084.65x = 21,123.60 × 8,148.70
  4. Step 4: Simplify right side
    14,084.65x = 172,129,879.32
  5. Step 5: Solve for x
    x = 172,129,879.32/14,084.65
  6. Step 6: Final answer
    x = 12,221.10

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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.