Home / 10,102.72-15,153.72-3,082.45

Finding the Fourth Proportional to 10,102.72, 15,153.72 and 3,082.45

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Solution

The fourth proportional to 10,102.72, 15,153.72 and 3,082.45 is: 4,623.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,102.72 : 15,153.72 = 3,082.45 : x
  2. Step 2: Convert to fraction form
    10,102.72/15,153.72 = 3,082.45/x
  3. Step 3: Cross multiply
    10,102.72x = 15,153.72 × 3,082.45
  4. Step 4: Simplify right side
    10,102.72x = 46,710,591.92
  5. Step 5: Solve for x
    x = 46,710,591.92/10,102.72
  6. Step 6: Final answer
    x = 4,623.57

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1.5x scale

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.