Home / 12,312.90-16,992.57-7,008.18

Finding the Fourth Proportional to 12,312.90, 16,992.57 and 7,008.18

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Solution

The fourth proportional to 12,312.90, 16,992.57 and 7,008.18 is: 9,671.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.90 : 16,992.57 = 7,008.18 : x
  2. Step 2: Convert to fraction form
    12,312.90/16,992.57 = 7,008.18/x
  3. Step 3: Cross multiply
    12,312.90x = 16,992.57 × 7,008.18
  4. Step 4: Simplify right side
    12,312.90x = 119,086,989.22
  5. Step 5: Solve for x
    x = 119,086,989.22/12,312.90
  6. Step 6: Final answer
    x = 9,671.73

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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.