Home / 15,261.82-21,061.83-8,547.73

Finding the Fourth Proportional to 15,261.82, 21,061.83 and 8,547.73

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Solution

The fourth proportional to 15,261.82, 21,061.83 and 8,547.73 is: 11,796.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261.82 : 21,061.83 = 8,547.73 : x
  2. Step 2: Convert to fraction form
    15,261.82/21,061.83 = 8,547.73/x
  3. Step 3: Cross multiply
    15,261.82x = 21,061.83 × 8,547.73
  4. Step 4: Simplify right side
    15,261.82x = 180,030,836.15
  5. Step 5: Solve for x
    x = 180,030,836.15/15,261.82
  6. Step 6: Final answer
    x = 11,796.16

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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.