Home / 15,765.53-21,755.75-8,595.27

Finding the Fourth Proportional to 15,765.53, 21,755.75 and 8,595.27

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Solution

The fourth proportional to 15,765.53, 21,755.75 and 8,595.27 is: 11,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.53 : 21,755.75 = 8,595.27 : x
  2. Step 2: Convert to fraction form
    15,765.53/21,755.75 = 8,595.27/x
  3. Step 3: Cross multiply
    15,765.53x = 21,755.75 × 8,595.27
  4. Step 4: Simplify right side
    15,765.53x = 186,996,502.33
  5. Step 5: Solve for x
    x = 186,996,502.33/15,765.53
  6. Step 6: Final answer
    x = 11,861.10

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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.