Home / 13,931.06-19,227.38-8,896.84

Finding the Fourth Proportional to 13,931.06, 19,227.38 and 8,896.84

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Solution

The fourth proportional to 13,931.06, 19,227.38 and 8,896.84 is: 12,279.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.06 : 19,227.38 = 8,896.84 : x
  2. Step 2: Convert to fraction form
    13,931.06/19,227.38 = 8,896.84/x
  3. Step 3: Cross multiply
    13,931.06x = 19,227.38 × 8,896.84
  4. Step 4: Simplify right side
    13,931.06x = 171,062,830.93
  5. Step 5: Solve for x
    x = 171,062,830.93/13,931.06
  6. Step 6: Final answer
    x = 12,279.24

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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.