Home / 12,209.28-16,848.63-6,905.22

Finding the Fourth Proportional to 12,209.28, 16,848.63 and 6,905.22

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Solution

The fourth proportional to 12,209.28, 16,848.63 and 6,905.22 is: 9,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.28 : 16,848.63 = 6,905.22 : x
  2. Step 2: Convert to fraction form
    12,209.28/16,848.63 = 6,905.22/x
  3. Step 3: Cross multiply
    12,209.28x = 16,848.63 × 6,905.22
  4. Step 4: Simplify right side
    12,209.28x = 116,343,496.85
  5. Step 5: Solve for x
    x = 116,343,496.85/12,209.28
  6. Step 6: Final answer
    x = 9,529.10

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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.