Home / 13,756.98-18,984.31-8,090.62

Finding the Fourth Proportional to 13,756.98, 18,984.31 and 8,090.62

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Solution

The fourth proportional to 13,756.98, 18,984.31 and 8,090.62 is: 11,164.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.98 : 18,984.31 = 8,090.62 : x
  2. Step 2: Convert to fraction form
    13,756.98/18,984.31 = 8,090.62/x
  3. Step 3: Cross multiply
    13,756.98x = 18,984.31 × 8,090.62
  4. Step 4: Simplify right side
    13,756.98x = 153,594,838.17
  5. Step 5: Solve for x
    x = 153,594,838.17/13,756.98
  6. Step 6: Final answer
    x = 11,164.87

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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.