Home / 17,688.28-26,494.98-12,115.48

Finding the Fourth Proportional to 17,688.28, 26,494.98 and 12,115.48

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Solution

The fourth proportional to 17,688.28, 26,494.98 and 12,115.48 is: 18,147.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,688.28 : 26,494.98 = 12,115.48 : x
  2. Step 2: Convert to fraction form
    17,688.28/26,494.98 = 12,115.48/x
  3. Step 3: Cross multiply
    17,688.28x = 26,494.98 × 12,115.48
  4. Step 4: Simplify right side
    17,688.28x = 320,999,400.29
  5. Step 5: Solve for x
    x = 320,999,400.29/17,688.28
  6. Step 6: Final answer
    x = 18,147.58

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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.