Home / 12,669.09-18,982.86-8,953.17

Finding the Fourth Proportional to 12,669.09, 18,982.86 and 8,953.17

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Solution

The fourth proportional to 12,669.09, 18,982.86 and 8,953.17 is: 13,415.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.09 : 18,982.86 = 8,953.17 : x
  2. Step 2: Convert to fraction form
    12,669.09/18,982.86 = 8,953.17/x
  3. Step 3: Cross multiply
    12,669.09x = 18,982.86 × 8,953.17
  4. Step 4: Simplify right side
    12,669.09x = 169,956,772.67
  5. Step 5: Solve for x
    x = 169,956,772.67/12,669.09
  6. Step 6: Final answer
    x = 13,415.07

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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.