Home / 8,109.81-12,165.75-2,266.47

Finding the Fourth Proportional to 8,109.81, 12,165.75 and 2,266.47

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Solution

The fourth proportional to 8,109.81, 12,165.75 and 2,266.47 is: 3,399.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.81 : 12,165.75 = 2,266.47 : x
  2. Step 2: Convert to fraction form
    8,109.81/12,165.75 = 2,266.47/x
  3. Step 3: Cross multiply
    8,109.81x = 12,165.75 × 2,266.47
  4. Step 4: Simplify right side
    8,109.81x = 27,573,307.40
  5. Step 5: Solve for x
    x = 27,573,307.40/8,109.81
  6. Step 6: Final answer
    x = 3,399.99

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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.