Home / 14,226.40-19,631.76-7,939.68

Finding the Fourth Proportional to 14,226.40, 19,631.76 and 7,939.68

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Solution

The fourth proportional to 14,226.40, 19,631.76 and 7,939.68 is: 10,956.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,226.40 : 19,631.76 = 7,939.68 : x
  2. Step 2: Convert to fraction form
    14,226.40/19,631.76 = 7,939.68/x
  3. Step 3: Cross multiply
    14,226.40x = 19,631.76 × 7,939.68
  4. Step 4: Simplify right side
    14,226.40x = 155,869,892.24
  5. Step 5: Solve for x
    x = 155,869,892.24/14,226.40
  6. Step 6: Final answer
    x = 10,956.38

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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.