Home / 12,219.08-16,862.32-6,630.08

Finding the Fourth Proportional to 12,219.08, 16,862.32 and 6,630.08

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Solution

The fourth proportional to 12,219.08, 16,862.32 and 6,630.08 is: 9,149.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.08 : 16,862.32 = 6,630.08 : x
  2. Step 2: Convert to fraction form
    12,219.08/16,862.32 = 6,630.08/x
  3. Step 3: Cross multiply
    12,219.08x = 16,862.32 × 6,630.08
  4. Step 4: Simplify right side
    12,219.08x = 111,798,530.59
  5. Step 5: Solve for x
    x = 111,798,530.59/12,219.08
  6. Step 6: Final answer
    x = 9,149.50

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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.