Home / 14,984.42-20,678.48-8,270.05

Finding the Fourth Proportional to 14,984.42, 20,678.48 and 8,270.05

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Solution

The fourth proportional to 14,984.42, 20,678.48 and 8,270.05 is: 11,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,984.42 : 20,678.48 = 8,270.05 : x
  2. Step 2: Convert to fraction form
    14,984.42/20,678.48 = 8,270.05/x
  3. Step 3: Cross multiply
    14,984.42x = 20,678.48 × 8,270.05
  4. Step 4: Simplify right side
    14,984.42x = 171,011,918.78
  5. Step 5: Solve for x
    x = 171,011,918.78/14,984.42
  6. Step 6: Final answer
    x = 11,412.65

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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.