Home / 14,286.04-19,711.54-8,621.70

Finding the Fourth Proportional to 14,286.04, 19,711.54 and 8,621.70

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Solution

The fourth proportional to 14,286.04, 19,711.54 and 8,621.70 is: 11,896.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.04 : 19,711.54 = 8,621.70 : x
  2. Step 2: Convert to fraction form
    14,286.04/19,711.54 = 8,621.70/x
  3. Step 3: Cross multiply
    14,286.04x = 19,711.54 × 8,621.70
  4. Step 4: Simplify right side
    14,286.04x = 169,946,984.42
  5. Step 5: Solve for x
    x = 169,946,984.42/14,286.04
  6. Step 6: Final answer
    x = 11,896.02

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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.