Home / 12,966.61-19,433.51-8,284.81

Finding the Fourth Proportional to 12,966.61, 19,433.51 and 8,284.81

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Solution

The fourth proportional to 12,966.61, 19,433.51 and 8,284.81 is: 12,416.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.61 : 19,433.51 = 8,284.81 : x
  2. Step 2: Convert to fraction form
    12,966.61/19,433.51 = 8,284.81/x
  3. Step 3: Cross multiply
    12,966.61x = 19,433.51 × 8,284.81
  4. Step 4: Simplify right side
    12,966.61x = 161,002,937.98
  5. Step 5: Solve for x
    x = 161,002,937.98/12,966.61
  6. Step 6: Final answer
    x = 12,416.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.