Home / 9,715.43-14,568.12-3,140.76

Finding the Fourth Proportional to 9,715.43, 14,568.12 and 3,140.76

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Solution

The fourth proportional to 9,715.43, 14,568.12 and 3,140.76 is: 4,709.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,715.43 : 14,568.12 = 3,140.76 : x
  2. Step 2: Convert to fraction form
    9,715.43/14,568.12 = 3,140.76/x
  3. Step 3: Cross multiply
    9,715.43x = 14,568.12 × 3,140.76
  4. Step 4: Simplify right side
    9,715.43x = 45,754,895.73
  5. Step 5: Solve for x
    x = 45,754,895.73/9,715.43
  6. Step 6: Final answer
    x = 4,709.51

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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.