Home / 18,142.94-25,038.38-12,082.79

Finding the Fourth Proportional to 18,142.94, 25,038.38 and 12,082.79

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Solution

The fourth proportional to 18,142.94, 25,038.38 and 12,082.79 is: 16,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.94 : 25,038.38 = 12,082.79 : x
  2. Step 2: Convert to fraction form
    18,142.94/25,038.38 = 12,082.79/x
  3. Step 3: Cross multiply
    18,142.94x = 25,038.38 × 12,082.79
  4. Step 4: Simplify right side
    18,142.94x = 302,533,580.28
  5. Step 5: Solve for x
    x = 302,533,580.28/18,142.94
  6. Step 6: Final answer
    x = 16,675.00

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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.