Home / 15,276.64-21,083.82-8,564.92

Finding the Fourth Proportional to 15,276.64, 21,083.82 and 8,564.92

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Solution

The fourth proportional to 15,276.64, 21,083.82 and 8,564.92 is: 11,820.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,276.64 : 21,083.82 = 8,564.92 : x
  2. Step 2: Convert to fraction form
    15,276.64/21,083.82 = 8,564.92/x
  3. Step 3: Cross multiply
    15,276.64x = 21,083.82 × 8,564.92
  4. Step 4: Simplify right side
    15,276.64x = 180,581,231.59
  5. Step 5: Solve for x
    x = 180,581,231.59/15,276.64
  6. Step 6: Final answer
    x = 11,820.74

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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.