Home / 15,241.12-21,039.94-11,465.72

Finding the Fourth Proportional to 15,241.12, 21,039.94 and 11,465.72

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Solution

The fourth proportional to 15,241.12, 21,039.94 and 11,465.72 is: 15,828.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,241.12 : 21,039.94 = 11,465.72 : x
  2. Step 2: Convert to fraction form
    15,241.12/21,039.94 = 11,465.72/x
  3. Step 3: Cross multiply
    15,241.12x = 21,039.94 × 11,465.72
  4. Step 4: Simplify right side
    15,241.12x = 241,238,056.13
  5. Step 5: Solve for x
    x = 241,238,056.13/15,241.12
  6. Step 6: Final answer
    x = 15,828.11

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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.