Home / 10,667.68-14,721.60-6,191.80

Finding the Fourth Proportional to 10,667.68, 14,721.60 and 6,191.80

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Solution

The fourth proportional to 10,667.68, 14,721.60 and 6,191.80 is: 8,544.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,667.68 : 14,721.60 = 6,191.80 : x
  2. Step 2: Convert to fraction form
    10,667.68/14,721.60 = 6,191.80/x
  3. Step 3: Cross multiply
    10,667.68x = 14,721.60 × 6,191.80
  4. Step 4: Simplify right side
    10,667.68x = 91,153,202.88
  5. Step 5: Solve for x
    x = 91,153,202.88/10,667.68
  6. Step 6: Final answer
    x = 8,544.80

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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.