Home / 15,523.72-21,447.86-10,828.96

Finding the Fourth Proportional to 15,523.72, 21,447.86 and 10,828.96

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Solution

The fourth proportional to 15,523.72, 21,447.86 and 10,828.96 is: 14,961.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.72 : 21,447.86 = 10,828.96 : x
  2. Step 2: Convert to fraction form
    15,523.72/21,447.86 = 10,828.96/x
  3. Step 3: Cross multiply
    15,523.72x = 21,447.86 × 10,828.96
  4. Step 4: Simplify right side
    15,523.72x = 232,258,018.03
  5. Step 5: Solve for x
    x = 232,258,018.03/15,523.72
  6. Step 6: Final answer
    x = 14,961.49

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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.