Home / 15,888.28-21,926.84-9,175.12

Finding the Fourth Proportional to 15,888.28, 21,926.84 and 9,175.12

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Solution

The fourth proportional to 15,888.28, 21,926.84 and 9,175.12 is: 12,662.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,888.28 : 21,926.84 = 9,175.12 : x
  2. Step 2: Convert to fraction form
    15,888.28/21,926.84 = 9,175.12/x
  3. Step 3: Cross multiply
    15,888.28x = 21,926.84 × 9,175.12
  4. Step 4: Simplify right side
    15,888.28x = 201,181,388.22
  5. Step 5: Solve for x
    x = 201,181,388.22/15,888.28
  6. Step 6: Final answer
    x = 12,662.25

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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.