Home / 13,458.12-18,510.39-10,799.70

Finding the Fourth Proportional to 13,458.12, 18,510.39 and 10,799.70

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Solution

The fourth proportional to 13,458.12, 18,510.39 and 10,799.70 is: 14,853.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.12 : 18,510.39 = 10,799.70 : x
  2. Step 2: Convert to fraction form
    13,458.12/18,510.39 = 10,799.70/x
  3. Step 3: Cross multiply
    13,458.12x = 18,510.39 × 10,799.70
  4. Step 4: Simplify right side
    13,458.12x = 199,906,658.88
  5. Step 5: Solve for x
    x = 199,906,658.88/13,458.12
  6. Step 6: Final answer
    x = 14,853.98

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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.