Home / 13,916.46-19,156.32-12,145.02

Finding the Fourth Proportional to 13,916.46, 19,156.32 and 12,145.02

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Solution

The fourth proportional to 13,916.46, 19,156.32 and 12,145.02 is: 16,717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.46 : 19,156.32 = 12,145.02 : x
  2. Step 2: Convert to fraction form
    13,916.46/19,156.32 = 12,145.02/x
  3. Step 3: Cross multiply
    13,916.46x = 19,156.32 × 12,145.02
  4. Step 4: Simplify right side
    13,916.46x = 232,653,889.53
  5. Step 5: Solve for x
    x = 232,653,889.53/13,916.46
  6. Step 6: Final answer
    x = 16,717.89

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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.