Home / 15,927.06-21,977.86-8,852.12

Finding the Fourth Proportional to 15,927.06, 21,977.86 and 8,852.12

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Solution

The fourth proportional to 15,927.06, 21,977.86 and 8,852.12 is: 12,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,927.06 : 21,977.86 = 8,852.12 : x
  2. Step 2: Convert to fraction form
    15,927.06/21,977.86 = 8,852.12/x
  3. Step 3: Cross multiply
    15,927.06x = 21,977.86 × 8,852.12
  4. Step 4: Simplify right side
    15,927.06x = 194,550,654.06
  5. Step 5: Solve for x
    x = 194,550,654.06/15,927.06
  6. Step 6: Final answer
    x = 12,215.10

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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.