Home / 13,916.38-20,877.81-4,056.70

Finding the Fourth Proportional to 13,916.38, 20,877.81 and 4,056.70

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Solution

The fourth proportional to 13,916.38, 20,877.81 and 4,056.70 is: 6,085.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.38 : 20,877.81 = 4,056.70 : x
  2. Step 2: Convert to fraction form
    13,916.38/20,877.81 = 4,056.70/x
  3. Step 3: Cross multiply
    13,916.38x = 20,877.81 × 4,056.70
  4. Step 4: Simplify right side
    13,916.38x = 84,695,011.83
  5. Step 5: Solve for x
    x = 84,695,011.83/13,916.38
  6. Step 6: Final answer
    x = 6,085.99

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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.