Home / 16,109.80-24,172.32-7,785.12

Finding the Fourth Proportional to 16,109.80, 24,172.32 and 7,785.12

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Solution

The fourth proportional to 16,109.80, 24,172.32 and 7,785.12 is: 11,681.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,109.80 : 24,172.32 = 7,785.12 : x
  2. Step 2: Convert to fraction form
    16,109.80/24,172.32 = 7,785.12/x
  3. Step 3: Cross multiply
    16,109.80x = 24,172.32 × 7,785.12
  4. Step 4: Simplify right side
    16,109.80x = 188,184,411.88
  5. Step 5: Solve for x
    x = 188,184,411.88/16,109.80
  6. Step 6: Final answer
    x = 11,681.36

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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.