Home / 12,019.12-16,587.32-6,984.90

Finding the Fourth Proportional to 12,019.12, 16,587.32 and 6,984.90

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Solution

The fourth proportional to 12,019.12, 16,587.32 and 6,984.90 is: 9,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019.12 : 16,587.32 = 6,984.90 : x
  2. Step 2: Convert to fraction form
    12,019.12/16,587.32 = 6,984.90/x
  3. Step 3: Cross multiply
    12,019.12x = 16,587.32 × 6,984.90
  4. Step 4: Simplify right side
    12,019.12x = 115,860,736.54
  5. Step 5: Solve for x
    x = 115,860,736.54/12,019.12
  6. Step 6: Final answer
    x = 9,639.70

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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.