Home / 18,430.56-27,650.70-9,663.12

Finding the Fourth Proportional to 18,430.56, 27,650.70 and 9,663.12

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Solution

The fourth proportional to 18,430.56, 27,650.70 and 9,663.12 is: 14,497.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.56 : 27,650.70 = 9,663.12 : x
  2. Step 2: Convert to fraction form
    18,430.56/27,650.70 = 9,663.12/x
  3. Step 3: Cross multiply
    18,430.56x = 27,650.70 × 9,663.12
  4. Step 4: Simplify right side
    18,430.56x = 267,192,032.18
  5. Step 5: Solve for x
    x = 267,192,032.18/18,430.56
  6. Step 6: Final answer
    x = 14,497.23

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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.