Home / 12,246-16,899.56-6,657.20

Finding the Fourth Proportional to 12,246, 16,899.56 and 6,657.20

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Solution

The fourth proportional to 12,246, 16,899.56 and 6,657.20 is: 9,186.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,246 : 16,899.56 = 6,657.20 : x
  2. Step 2: Convert to fraction form
    12,246/16,899.56 = 6,657.20/x
  3. Step 3: Cross multiply
    12,246x = 16,899.56 × 6,657.20
  4. Step 4: Simplify right side
    12,246x = 112,503,750.83
  5. Step 5: Solve for x
    x = 112,503,750.83/12,246
  6. Step 6: Final answer
    x = 9,186.98

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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.