Home / 13,090.44-18,059.76-9,312.42

Finding the Fourth Proportional to 13,090.44, 18,059.76 and 9,312.42

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Solution

The fourth proportional to 13,090.44, 18,059.76 and 9,312.42 is: 12,847.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.44 : 18,059.76 = 9,312.42 : x
  2. Step 2: Convert to fraction form
    13,090.44/18,059.76 = 9,312.42/x
  3. Step 3: Cross multiply
    13,090.44x = 18,059.76 × 9,312.42
  4. Step 4: Simplify right side
    13,090.44x = 168,180,070.22
  5. Step 5: Solve for x
    x = 168,180,070.22/13,090.44
  6. Step 6: Final answer
    x = 12,847.55

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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.