Home / 12,310.29-16,988.22-7,005.15

Finding the Fourth Proportional to 12,310.29, 16,988.22 and 7,005.15

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Solution

The fourth proportional to 12,310.29, 16,988.22 and 7,005.15 is: 9,667.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.29 : 16,988.22 = 7,005.15 : x
  2. Step 2: Convert to fraction form
    12,310.29/16,988.22 = 7,005.15/x
  3. Step 3: Cross multiply
    12,310.29x = 16,988.22 × 7,005.15
  4. Step 4: Simplify right side
    12,310.29x = 119,005,029.33
  5. Step 5: Solve for x
    x = 119,005,029.33/12,310.29
  6. Step 6: Final answer
    x = 9,667.12

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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.