Home / 19,279.17-26,599.86-12,109.86

Finding the Fourth Proportional to 19,279.17, 26,599.86 and 12,109.86

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Solution

The fourth proportional to 19,279.17, 26,599.86 and 12,109.86 is: 16,708.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,279.17 : 26,599.86 = 12,109.86 : x
  2. Step 2: Convert to fraction form
    19,279.17/26,599.86 = 12,109.86/x
  3. Step 3: Cross multiply
    19,279.17x = 26,599.86 × 12,109.86
  4. Step 4: Simplify right side
    19,279.17x = 322,120,580.62
  5. Step 5: Solve for x
    x = 322,120,580.62/19,279.17
  6. Step 6: Final answer
    x = 16,708.22

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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.