Home / 12,309.47-16,937.86-11,965.02

Finding the Fourth Proportional to 12,309.47, 16,937.86 and 11,965.02

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Solution

The fourth proportional to 12,309.47, 16,937.86 and 11,965.02 is: 16,463.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309.47 : 16,937.86 = 11,965.02 : x
  2. Step 2: Convert to fraction form
    12,309.47/16,937.86 = 11,965.02/x
  3. Step 3: Cross multiply
    12,309.47x = 16,937.86 × 11,965.02
  4. Step 4: Simplify right side
    12,309.47x = 202,661,762.66
  5. Step 5: Solve for x
    x = 202,661,762.66/12,309.47
  6. Step 6: Final answer
    x = 16,463.89

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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.