Home / 12,228.40-16,870.84-6,922.08

Finding the Fourth Proportional to 12,228.40, 16,870.84 and 6,922.08

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Solution

The fourth proportional to 12,228.40, 16,870.84 and 6,922.08 is: 9,550.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228.40 : 16,870.84 = 6,922.08 : x
  2. Step 2: Convert to fraction form
    12,228.40/16,870.84 = 6,922.08/x
  3. Step 3: Cross multiply
    12,228.40x = 16,870.84 × 6,922.08
  4. Step 4: Simplify right side
    12,228.40x = 116,781,304.15
  5. Step 5: Solve for x
    x = 116,781,304.15/12,228.40
  6. Step 6: Final answer
    x = 9,550.01

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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.