Home / 11,909.10-16,434.27-6,603.96

Finding the Fourth Proportional to 11,909.10, 16,434.27 and 6,603.96

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Solution

The fourth proportional to 11,909.10, 16,434.27 and 6,603.96 is: 9,113.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.10 : 16,434.27 = 6,603.96 : x
  2. Step 2: Convert to fraction form
    11,909.10/16,434.27 = 6,603.96/x
  3. Step 3: Cross multiply
    11,909.10x = 16,434.27 × 6,603.96
  4. Step 4: Simplify right side
    11,909.10x = 108,531,261.71
  5. Step 5: Solve for x
    x = 108,531,261.71/11,909.10
  6. Step 6: Final answer
    x = 9,113.31

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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.