Home / 15,705.02-21,672.33-8,631.02

Finding the Fourth Proportional to 15,705.02, 21,672.33 and 8,631.02

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Solution

The fourth proportional to 15,705.02, 21,672.33 and 8,631.02 is: 11,910.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,705.02 : 21,672.33 = 8,631.02 : x
  2. Step 2: Convert to fraction form
    15,705.02/21,672.33 = 8,631.02/x
  3. Step 3: Cross multiply
    15,705.02x = 21,672.33 × 8,631.02
  4. Step 4: Simplify right side
    15,705.02x = 187,054,205.31
  5. Step 5: Solve for x
    x = 187,054,205.31/15,705.02
  6. Step 6: Final answer
    x = 11,910.48

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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.