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Finding the Fourth Proportional to 19,804.90, 29,706.27 and 6,655.90

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Solution

The fourth proportional to 19,804.90, 29,706.27 and 6,655.90 is: 9,983.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,804.90 : 29,706.27 = 6,655.90 : x
  2. Step 2: Convert to fraction form
    19,804.90/29,706.27 = 6,655.90/x
  3. Step 3: Cross multiply
    19,804.90x = 29,706.27 × 6,655.90
  4. Step 4: Simplify right side
    19,804.90x = 197,721,962.49
  5. Step 5: Solve for x
    x = 197,721,962.49/19,804.90
  6. Step 6: Final answer
    x = 9,983.49

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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.