Home / 12,666.06-17,460.62-8,877.79

Finding the Fourth Proportional to 12,666.06, 17,460.62 and 8,877.79

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Solution

The fourth proportional to 12,666.06, 17,460.62 and 8,877.79 is: 12,238.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.06 : 17,460.62 = 8,877.79 : x
  2. Step 2: Convert to fraction form
    12,666.06/17,460.62 = 8,877.79/x
  3. Step 3: Cross multiply
    12,666.06x = 17,460.62 × 8,877.79
  4. Step 4: Simplify right side
    12,666.06x = 155,011,717.63
  5. Step 5: Solve for x
    x = 155,011,717.63/12,666.06
  6. Step 6: Final answer
    x = 12,238.35

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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.