Home / 19,085.76-26,347.32-12,722.94

Finding the Fourth Proportional to 19,085.76, 26,347.32 and 12,722.94

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Solution

The fourth proportional to 19,085.76, 26,347.32 and 12,722.94 is: 17,563.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,085.76 : 26,347.32 = 12,722.94 : x
  2. Step 2: Convert to fraction form
    19,085.76/26,347.32 = 12,722.94/x
  3. Step 3: Cross multiply
    19,085.76x = 26,347.32 × 12,722.94
  4. Step 4: Simplify right side
    19,085.76x = 335,215,371.52
  5. Step 5: Solve for x
    x = 335,215,371.52/19,085.76
  6. Step 6: Final answer
    x = 17,563.64

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Half scale
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Double scale
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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.