Home / 15,476.06-21,361.83-9,887.06

Finding the Fourth Proportional to 15,476.06, 21,361.83 and 9,887.06

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Solution

The fourth proportional to 15,476.06, 21,361.83 and 9,887.06 is: 13,647.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.06 : 21,361.83 = 9,887.06 : x
  2. Step 2: Convert to fraction form
    15,476.06/21,361.83 = 9,887.06/x
  3. Step 3: Cross multiply
    15,476.06x = 21,361.83 × 9,887.06
  4. Step 4: Simplify right side
    15,476.06x = 211,205,711.25
  5. Step 5: Solve for x
    x = 211,205,711.25/15,476.06
  6. Step 6: Final answer
    x = 13,647.25

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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.