Home / 16,443.40-22,686.18-11,405.80

Finding the Fourth Proportional to 16,443.40, 22,686.18 and 11,405.80

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Solution

The fourth proportional to 16,443.40, 22,686.18 and 11,405.80 is: 15,736.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,443.40 : 22,686.18 = 11,405.80 : x
  2. Step 2: Convert to fraction form
    16,443.40/22,686.18 = 11,405.80/x
  3. Step 3: Cross multiply
    16,443.40x = 22,686.18 × 11,405.80
  4. Step 4: Simplify right side
    16,443.40x = 258,754,031.84
  5. Step 5: Solve for x
    x = 258,754,031.84/16,443.40
  6. Step 6: Final answer
    x = 15,736.04

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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.