Home / 15,455.82-21,327.75-8,741.10

Finding the Fourth Proportional to 15,455.82, 21,327.75 and 8,741.10

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Solution

The fourth proportional to 15,455.82, 21,327.75 and 8,741.10 is: 12,061.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,455.82 : 21,327.75 = 8,741.10 : x
  2. Step 2: Convert to fraction form
    15,455.82/21,327.75 = 8,741.10/x
  3. Step 3: Cross multiply
    15,455.82x = 21,327.75 × 8,741.10
  4. Step 4: Simplify right side
    15,455.82x = 186,427,995.53
  5. Step 5: Solve for x
    x = 186,427,995.53/15,455.82
  6. Step 6: Final answer
    x = 12,061.99

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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.