Home / 14,715.42-20,297.04-9,678.06

Finding the Fourth Proportional to 14,715.42, 20,297.04 and 9,678.06

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Solution

The fourth proportional to 14,715.42, 20,297.04 and 9,678.06 is: 13,348.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,715.42 : 20,297.04 = 9,678.06 : x
  2. Step 2: Convert to fraction form
    14,715.42/20,297.04 = 9,678.06/x
  3. Step 3: Cross multiply
    14,715.42x = 20,297.04 × 9,678.06
  4. Step 4: Simplify right side
    14,715.42x = 196,435,970.94
  5. Step 5: Solve for x
    x = 196,435,970.94/14,715.42
  6. Step 6: Final answer
    x = 13,348.99

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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.