Home / 11,909.39-16,434.09-6,530.94

Finding the Fourth Proportional to 11,909.39, 16,434.09 and 6,530.94

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Solution

The fourth proportional to 11,909.39, 16,434.09 and 6,530.94 is: 9,012.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.39 : 16,434.09 = 6,530.94 : x
  2. Step 2: Convert to fraction form
    11,909.39/16,434.09 = 6,530.94/x
  3. Step 3: Cross multiply
    11,909.39x = 16,434.09 × 6,530.94
  4. Step 4: Simplify right side
    11,909.39x = 107,330,055.74
  5. Step 5: Solve for x
    x = 107,330,055.74/11,909.39
  6. Step 6: Final answer
    x = 9,012.22

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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.