Home / 12,236.40-16,886.40-6,647.52

Finding the Fourth Proportional to 12,236.40, 16,886.40 and 6,647.52

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Solution

The fourth proportional to 12,236.40, 16,886.40 and 6,647.52 is: 9,173.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.40 : 16,886.40 = 6,647.52 : x
  2. Step 2: Convert to fraction form
    12,236.40/16,886.40 = 6,647.52/x
  3. Step 3: Cross multiply
    12,236.40x = 16,886.40 × 6,647.52
  4. Step 4: Simplify right side
    12,236.40x = 112,252,681.73
  5. Step 5: Solve for x
    x = 112,252,681.73/12,236.40
  6. Step 6: Final answer
    x = 9,173.67

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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.