Home / 12,909.24-17,802.54-8,669.88

Finding the Fourth Proportional to 12,909.24, 17,802.54 and 8,669.88

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Solution

The fourth proportional to 12,909.24, 17,802.54 and 8,669.88 is: 11,956.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909.24 : 17,802.54 = 8,669.88 : x
  2. Step 2: Convert to fraction form
    12,909.24/17,802.54 = 8,669.88/x
  3. Step 3: Cross multiply
    12,909.24x = 17,802.54 × 8,669.88
  4. Step 4: Simplify right side
    12,909.24x = 154,345,885.50
  5. Step 5: Solve for x
    x = 154,345,885.50/12,909.24
  6. Step 6: Final answer
    x = 11,956.23

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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.