Home / 11,909.07-16,434.59-6,603.98

Finding the Fourth Proportional to 11,909.07, 16,434.59 and 6,603.98

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Solution

The fourth proportional to 11,909.07, 16,434.59 and 6,603.98 is: 9,113.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.07 : 16,434.59 = 6,603.98 : x
  2. Step 2: Convert to fraction form
    11,909.07/16,434.59 = 6,603.98/x
  3. Step 3: Cross multiply
    11,909.07x = 16,434.59 × 6,603.98
  4. Step 4: Simplify right side
    11,909.07x = 108,533,588.48
  5. Step 5: Solve for x
    x = 108,533,588.48/11,909.07
  6. Step 6: Final answer
    x = 9,113.52

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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.