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Finding the Fourth Proportional to 11,005.90, 16,476.45 and 9,709.90

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Solution

The fourth proportional to 11,005.90, 16,476.45 and 9,709.90 is: 14,536.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.90 : 16,476.45 = 9,709.90 : x
  2. Step 2: Convert to fraction form
    11,005.90/16,476.45 = 9,709.90/x
  3. Step 3: Cross multiply
    11,005.90x = 16,476.45 × 9,709.90
  4. Step 4: Simplify right side
    11,005.90x = 159,984,681.86
  5. Step 5: Solve for x
    x = 159,984,681.86/11,005.90
  6. Step 6: Final answer
    x = 14,536.27

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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.