Home / 12,209.77-16,851.63-7,173.98

Finding the Fourth Proportional to 12,209.77, 16,851.63 and 7,173.98

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Solution

The fourth proportional to 12,209.77, 16,851.63 and 7,173.98 is: 9,901.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.77 : 16,851.63 = 7,173.98 : x
  2. Step 2: Convert to fraction form
    12,209.77/16,851.63 = 7,173.98/x
  3. Step 3: Cross multiply
    12,209.77x = 16,851.63 × 7,173.98
  4. Step 4: Simplify right side
    12,209.77x = 120,893,357.22
  5. Step 5: Solve for x
    x = 120,893,357.22/12,209.77
  6. Step 6: Final answer
    x = 9,901.37

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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.