Home / 15,414.05-21,271.46-8,699.96

Finding the Fourth Proportional to 15,414.05, 21,271.46 and 8,699.96

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Solution

The fourth proportional to 15,414.05, 21,271.46 and 8,699.96 is: 12,005.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.05 : 21,271.46 = 8,699.96 : x
  2. Step 2: Convert to fraction form
    15,414.05/21,271.46 = 8,699.96/x
  3. Step 3: Cross multiply
    15,414.05x = 21,271.46 × 8,699.96
  4. Step 4: Simplify right side
    15,414.05x = 185,060,701.28
  5. Step 5: Solve for x
    x = 185,060,701.28/15,414.05
  6. Step 6: Final answer
    x = 12,005.98

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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.