Home / 12,933.40-19,400.10-10,013.80

Finding the Fourth Proportional to 12,933.40, 19,400.10 and 10,013.80

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Solution

The fourth proportional to 12,933.40, 19,400.10 and 10,013.80 is: 15,020.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933.40 : 19,400.10 = 10,013.80 : x
  2. Step 2: Convert to fraction form
    12,933.40/19,400.10 = 10,013.80/x
  3. Step 3: Cross multiply
    12,933.40x = 19,400.10 × 10,013.80
  4. Step 4: Simplify right side
    12,933.40x = 194,268,721.38
  5. Step 5: Solve for x
    x = 194,268,721.38/12,933.40
  6. Step 6: Final answer
    x = 15,020.70

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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.