Home / 12,384,012.80-18,534,028.80-10,872,358.40

Finding the Fourth Proportional to 12,384,012.80, 18,534,028.80 and 10,872,358.40

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Solution

The fourth proportional to 12,384,012.80, 18,534,028.80 and 10,872,358.40 is: 16,271,672.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,384,012.80 : 18,534,028.80 = 10,872,358.40 : x
  2. Step 2: Convert to fraction form
    12,384,012.80/18,534,028.80 = 10,872,358.40/x
  3. Step 3: Cross multiply
    12,384,012.80x = 18,534,028.80 × 10,872,358.40
  4. Step 4: Simplify right side
    12,384,012.80x = 201,508,603,709,521.94
  5. Step 5: Solve for x
    x = 201,508,603,709,521.94/12,384,012.80
  6. Step 6: Final answer
    x = 16,271,672.76

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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.