Home / 14,289.45-19,719.42-7,916.04

Finding the Fourth Proportional to 14,289.45, 19,719.42 and 7,916.04

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Solution

The fourth proportional to 14,289.45, 19,719.42 and 7,916.04 is: 10,924.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.45 : 19,719.42 = 7,916.04 : x
  2. Step 2: Convert to fraction form
    14,289.45/19,719.42 = 7,916.04/x
  3. Step 3: Cross multiply
    14,289.45x = 19,719.42 × 7,916.04
  4. Step 4: Simplify right side
    14,289.45x = 156,099,717.50
  5. Step 5: Solve for x
    x = 156,099,717.50/14,289.45
  6. Step 6: Final answer
    x = 10,924.12

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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.