Home / 13,285.14-19,940.03-6,715.95

Finding the Fourth Proportional to 13,285.14, 19,940.03 and 6,715.95

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Solution

The fourth proportional to 13,285.14, 19,940.03 and 6,715.95 is: 10,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.14 : 19,940.03 = 6,715.95 : x
  2. Step 2: Convert to fraction form
    13,285.14/19,940.03 = 6,715.95/x
  3. Step 3: Cross multiply
    13,285.14x = 19,940.03 × 6,715.95
  4. Step 4: Simplify right side
    13,285.14x = 133,916,210.90
  5. Step 5: Solve for x
    x = 133,916,210.90/13,285.14
  6. Step 6: Final answer
    x = 10,080.15

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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.