Home / 21,645.66-32,486.85-8,507.19

Finding the Fourth Proportional to 21,645.66, 32,486.85 and 8,507.19

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Solution

The fourth proportional to 21,645.66, 32,486.85 and 8,507.19 is: 12,768.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,645.66 : 32,486.85 = 8,507.19 : x
  2. Step 2: Convert to fraction form
    21,645.66/32,486.85 = 8,507.19/x
  3. Step 3: Cross multiply
    21,645.66x = 32,486.85 × 8,507.19
  4. Step 4: Simplify right side
    21,645.66x = 276,371,805.45
  5. Step 5: Solve for x
    x = 276,371,805.45/21,645.66
  6. Step 6: Final answer
    x = 12,768.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.