Home / 15,776.73-21,771.59-8,606.70

Finding the Fourth Proportional to 15,776.73, 21,771.59 and 8,606.70

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Solution

The fourth proportional to 15,776.73, 21,771.59 and 8,606.70 is: 11,877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,776.73 : 21,771.59 = 8,606.70 : x
  2. Step 2: Convert to fraction form
    15,776.73/21,771.59 = 8,606.70/x
  3. Step 3: Cross multiply
    15,776.73x = 21,771.59 × 8,606.70
  4. Step 4: Simplify right side
    15,776.73x = 187,381,500.62
  5. Step 5: Solve for x
    x = 187,381,500.62/15,776.73
  6. Step 6: Final answer
    x = 11,877.08

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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.