Home / 19,917.76-27,457.04-12,746.92

Finding the Fourth Proportional to 19,917.76, 27,457.04 and 12,746.92

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Solution

The fourth proportional to 19,917.76, 27,457.04 and 12,746.92 is: 17,571.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.76 : 27,457.04 = 12,746.92 : x
  2. Step 2: Convert to fraction form
    19,917.76/27,457.04 = 12,746.92/x
  3. Step 3: Cross multiply
    19,917.76x = 27,457.04 × 12,746.92
  4. Step 4: Simplify right side
    19,917.76x = 349,992,692.32
  5. Step 5: Solve for x
    x = 349,992,692.32/19,917.76
  6. Step 6: Final answer
    x = 17,571.89

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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.