Home / 15,708.63-21,677.99-8,635.52

Finding the Fourth Proportional to 15,708.63, 21,677.99 and 8,635.52

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Solution

The fourth proportional to 15,708.63, 21,677.99 and 8,635.52 is: 11,917.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.63 : 21,677.99 = 8,635.52 : x
  2. Step 2: Convert to fraction form
    15,708.63/21,677.99 = 8,635.52/x
  3. Step 3: Cross multiply
    15,708.63x = 21,677.99 × 8,635.52
  4. Step 4: Simplify right side
    15,708.63x = 187,200,564.64
  5. Step 5: Solve for x
    x = 187,200,564.64/15,708.63
  6. Step 6: Final answer
    x = 11,917.05

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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.