Home / 14,190.38-19,582.53-7,902.80

Finding the Fourth Proportional to 14,190.38, 19,582.53 and 7,902.80

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Solution

The fourth proportional to 14,190.38, 19,582.53 and 7,902.80 is: 10,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.38 : 19,582.53 = 7,902.80 : x
  2. Step 2: Convert to fraction form
    14,190.38/19,582.53 = 7,902.80/x
  3. Step 3: Cross multiply
    14,190.38x = 19,582.53 × 7,902.80
  4. Step 4: Simplify right side
    14,190.38x = 154,756,818.08
  5. Step 5: Solve for x
    x = 154,756,818.08/14,190.38
  6. Step 6: Final answer
    x = 10,905.76

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.