Home / 12,563.47-18,842.77-11,938.96

Finding the Fourth Proportional to 12,563.47, 18,842.77 and 11,938.96

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Solution

The fourth proportional to 12,563.47, 18,842.77 and 11,938.96 is: 17,906.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.47 : 18,842.77 = 11,938.96 : x
  2. Step 2: Convert to fraction form
    12,563.47/18,842.77 = 11,938.96/x
  3. Step 3: Cross multiply
    12,563.47x = 18,842.77 × 11,938.96
  4. Step 4: Simplify right side
    12,563.47x = 224,963,077.32
  5. Step 5: Solve for x
    x = 224,963,077.32/12,563.47
  6. Step 6: Final answer
    x = 17,906.13

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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.