Home / 18,090.16-27,140.76-8,730.49

Finding the Fourth Proportional to 18,090.16, 27,140.76 and 8,730.49

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Solution

The fourth proportional to 18,090.16, 27,140.76 and 8,730.49 is: 13,098.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.16 : 27,140.76 = 8,730.49 : x
  2. Step 2: Convert to fraction form
    18,090.16/27,140.76 = 8,730.49/x
  3. Step 3: Cross multiply
    18,090.16x = 27,140.76 × 8,730.49
  4. Step 4: Simplify right side
    18,090.16x = 236,952,010.12
  5. Step 5: Solve for x
    x = 236,952,010.12/18,090.16
  6. Step 6: Final answer
    x = 13,098.39

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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.