Home / 14,678.40-20,232.60-11,486.28

Finding the Fourth Proportional to 14,678.40, 20,232.60 and 11,486.28

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Solution

The fourth proportional to 14,678.40, 20,232.60 and 11,486.28 is: 15,832.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,678.40 : 20,232.60 = 11,486.28 : x
  2. Step 2: Convert to fraction form
    14,678.40/20,232.60 = 11,486.28/x
  3. Step 3: Cross multiply
    14,678.40x = 20,232.60 × 11,486.28
  4. Step 4: Simplify right side
    14,678.40x = 232,397,308.73
  5. Step 5: Solve for x
    x = 232,397,308.73/14,678.40
  6. Step 6: Final answer
    x = 15,832.60

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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.