Home / 14,170.96-21,338.75-10,499.20

Finding the Fourth Proportional to 14,170.96, 21,338.75 and 10,499.20

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Solution

The fourth proportional to 14,170.96, 21,338.75 and 10,499.20 is: 15,809.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,170.96 : 21,338.75 = 10,499.20 : x
  2. Step 2: Convert to fraction form
    14,170.96/21,338.75 = 10,499.20/x
  3. Step 3: Cross multiply
    14,170.96x = 21,338.75 × 10,499.20
  4. Step 4: Simplify right side
    14,170.96x = 224,039,804.00
  5. Step 5: Solve for x
    x = 224,039,804.00/14,170.96
  6. Step 6: Final answer
    x = 15,809.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.