Home / 12,320.20-17,011.84-11,701.01

Finding the Fourth Proportional to 12,320.20, 17,011.84 and 11,701.01

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Solution

The fourth proportional to 12,320.20, 17,011.84 and 11,701.01 is: 16,156.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.20 : 17,011.84 = 11,701.01 : x
  2. Step 2: Convert to fraction form
    12,320.20/17,011.84 = 11,701.01/x
  3. Step 3: Cross multiply
    12,320.20x = 17,011.84 × 11,701.01
  4. Step 4: Simplify right side
    12,320.20x = 199,055,649.48
  5. Step 5: Solve for x
    x = 199,055,649.48/12,320.20
  6. Step 6: Final answer
    x = 16,156.85

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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.