Home / 14,430.87-19,916.24-8,142.75

Finding the Fourth Proportional to 14,430.87, 19,916.24 and 8,142.75

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Solution

The fourth proportional to 14,430.87, 19,916.24 and 8,142.75 is: 11,237.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,430.87 : 19,916.24 = 8,142.75 : x
  2. Step 2: Convert to fraction form
    14,430.87/19,916.24 = 8,142.75/x
  3. Step 3: Cross multiply
    14,430.87x = 19,916.24 × 8,142.75
  4. Step 4: Simplify right side
    14,430.87x = 162,172,922.55
  5. Step 5: Solve for x
    x = 162,172,922.55/14,430.87
  6. Step 6: Final answer
    x = 11,237.92

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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.