Home / 15,921.84-21,969.48-8,848.08

Finding the Fourth Proportional to 15,921.84, 21,969.48 and 8,848.08

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Solution

The fourth proportional to 15,921.84, 21,969.48 and 8,848.08 is: 12,208.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921.84 : 21,969.48 = 8,848.08 : x
  2. Step 2: Convert to fraction form
    15,921.84/21,969.48 = 8,848.08/x
  3. Step 3: Cross multiply
    15,921.84x = 21,969.48 × 8,848.08
  4. Step 4: Simplify right side
    15,921.84x = 194,387,716.60
  5. Step 5: Solve for x
    x = 194,387,716.60/15,921.84
  6. Step 6: Final answer
    x = 12,208.87

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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.