Home / 12,225.27-16,871.81-6,920.88

Finding the Fourth Proportional to 12,225.27, 16,871.81 and 6,920.88

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Solution

The fourth proportional to 12,225.27, 16,871.81 and 6,920.88 is: 9,551.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.27 : 16,871.81 = 6,920.88 : x
  2. Step 2: Convert to fraction form
    12,225.27/16,871.81 = 6,920.88/x
  3. Step 3: Cross multiply
    12,225.27x = 16,871.81 × 6,920.88
  4. Step 4: Simplify right side
    12,225.27x = 116,767,772.39
  5. Step 5: Solve for x
    x = 116,767,772.39/12,225.27
  6. Step 6: Final answer
    x = 9,551.35

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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.