Home / 11,051.80-16,566.90-9,885.40

Finding the Fourth Proportional to 11,051.80, 16,566.90 and 9,885.40

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Solution

The fourth proportional to 11,051.80, 16,566.90 and 9,885.40 is: 14,818.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,051.80 : 16,566.90 = 9,885.40 : x
  2. Step 2: Convert to fraction form
    11,051.80/16,566.90 = 9,885.40/x
  3. Step 3: Cross multiply
    11,051.80x = 16,566.90 × 9,885.40
  4. Step 4: Simplify right side
    11,051.80x = 163,770,433.26
  5. Step 5: Solve for x
    x = 163,770,433.26/11,051.80
  6. Step 6: Final answer
    x = 14,818.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.