Home / 15,406.97-21,261.63-8,333.39

Finding the Fourth Proportional to 15,406.97, 21,261.63 and 8,333.39

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Solution

The fourth proportional to 15,406.97, 21,261.63 and 8,333.39 is: 11,500.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406.97 : 21,261.63 = 8,333.39 : x
  2. Step 2: Convert to fraction form
    15,406.97/21,261.63 = 8,333.39/x
  3. Step 3: Cross multiply
    15,406.97x = 21,261.63 × 8,333.39
  4. Step 4: Simplify right side
    15,406.97x = 177,181,454.83
  5. Step 5: Solve for x
    x = 177,181,454.83/15,406.97
  6. Step 6: Final answer
    x = 11,500.08

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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.