Home / 12,070.56-16,639.93-8,474.57

Finding the Fourth Proportional to 12,070.56, 16,639.93 and 8,474.57

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Solution

The fourth proportional to 12,070.56, 16,639.93 and 8,474.57 is: 11,682.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,070.56 : 16,639.93 = 8,474.57 : x
  2. Step 2: Convert to fraction form
    12,070.56/16,639.93 = 8,474.57/x
  3. Step 3: Cross multiply
    12,070.56x = 16,639.93 × 8,474.57
  4. Step 4: Simplify right side
    12,070.56x = 141,016,251.58
  5. Step 5: Solve for x
    x = 141,016,251.58/12,070.56
  6. Step 6: Final answer
    x = 11,682.66

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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.