Home / 15,410.70-21,261.06-11,387.22

Finding the Fourth Proportional to 15,410.70, 21,261.06 and 11,387.22

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Solution

The fourth proportional to 15,410.70, 21,261.06 and 11,387.22 is: 15,710.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,410.70 : 21,261.06 = 11,387.22 : x
  2. Step 2: Convert to fraction form
    15,410.70/21,261.06 = 11,387.22/x
  3. Step 3: Cross multiply
    15,410.70x = 21,261.06 × 11,387.22
  4. Step 4: Simplify right side
    15,410.70x = 242,104,435.29
  5. Step 5: Solve for x
    x = 242,104,435.29/15,410.70
  6. Step 6: Final answer
    x = 15,710.15

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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.