Home / 10,085.46-15,128.81-3,065.72

Finding the Fourth Proportional to 10,085.46, 15,128.81 and 3,065.72

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Solution

The fourth proportional to 10,085.46, 15,128.81 and 3,065.72 is: 4,598.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.46 : 15,128.81 = 3,065.72 : x
  2. Step 2: Convert to fraction form
    10,085.46/15,128.81 = 3,065.72/x
  3. Step 3: Cross multiply
    10,085.46x = 15,128.81 × 3,065.72
  4. Step 4: Simplify right side
    10,085.46x = 46,380,604.42
  5. Step 5: Solve for x
    x = 46,380,604.42/10,085.46
  6. Step 6: Final answer
    x = 4,598.76

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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.