Home / 15,699.75-21,656.04-9,322.01

Finding the Fourth Proportional to 15,699.75, 21,656.04 and 9,322.01

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Solution

The fourth proportional to 15,699.75, 21,656.04 and 9,322.01 is: 12,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699.75 : 21,656.04 = 9,322.01 : x
  2. Step 2: Convert to fraction form
    15,699.75/21,656.04 = 9,322.01/x
  3. Step 3: Cross multiply
    15,699.75x = 21,656.04 × 9,322.01
  4. Step 4: Simplify right side
    15,699.75x = 201,877,821.44
  5. Step 5: Solve for x
    x = 201,877,821.44/15,699.75
  6. Step 6: Final answer
    x = 12,858.66

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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.