Home / 12,309.87-17,001.77-8,967.63

Finding the Fourth Proportional to 12,309.87, 17,001.77 and 8,967.63

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Solution

The fourth proportional to 12,309.87, 17,001.77 and 8,967.63 is: 12,385.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309.87 : 17,001.77 = 8,967.63 : x
  2. Step 2: Convert to fraction form
    12,309.87/17,001.77 = 8,967.63/x
  3. Step 3: Cross multiply
    12,309.87x = 17,001.77 × 8,967.63
  4. Step 4: Simplify right side
    12,309.87x = 152,465,537.87
  5. Step 5: Solve for x
    x = 152,465,537.87/12,309.87
  6. Step 6: Final answer
    x = 12,385.63

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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.