Home / 12,799.55-19,186.16-4,900.21

Finding the Fourth Proportional to 12,799.55, 19,186.16 and 4,900.21

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Solution

The fourth proportional to 12,799.55, 19,186.16 and 4,900.21 is: 7,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,799.55 : 19,186.16 = 4,900.21 : x
  2. Step 2: Convert to fraction form
    12,799.55/19,186.16 = 4,900.21/x
  3. Step 3: Cross multiply
    12,799.55x = 19,186.16 × 4,900.21
  4. Step 4: Simplify right side
    12,799.55x = 94,016,117.16
  5. Step 5: Solve for x
    x = 94,016,117.16/12,799.55
  6. Step 6: Final answer
    x = 7,345.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.