Home / 14,631.23-20,190.96-7,916.71

Finding the Fourth Proportional to 14,631.23, 20,190.96 and 7,916.71

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Solution

The fourth proportional to 14,631.23, 20,190.96 and 7,916.71 is: 10,924.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.23 : 20,190.96 = 7,916.71 : x
  2. Step 2: Convert to fraction form
    14,631.23/20,190.96 = 7,916.71/x
  3. Step 3: Cross multiply
    14,631.23x = 20,190.96 × 7,916.71
  4. Step 4: Simplify right side
    14,631.23x = 159,845,974.94
  5. Step 5: Solve for x
    x = 159,845,974.94/14,631.23
  6. Step 6: Final answer
    x = 10,924.99

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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.