Home / 12,089.20-16,681.98-6,783.04

Finding the Fourth Proportional to 12,089.20, 16,681.98 and 6,783.04

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Solution

The fourth proportional to 12,089.20, 16,681.98 and 6,783.04 is: 9,359.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.20 : 16,681.98 = 6,783.04 : x
  2. Step 2: Convert to fraction form
    12,089.20/16,681.98 = 6,783.04/x
  3. Step 3: Cross multiply
    12,089.20x = 16,681.98 × 6,783.04
  4. Step 4: Simplify right side
    12,089.20x = 113,154,537.62
  5. Step 5: Solve for x
    x = 113,154,537.62/12,089.20
  6. Step 6: Final answer
    x = 9,359.97

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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.