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Finding the Fourth Proportional to 16,999.97, 25,504.28 and 9,985.91

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Solution

The fourth proportional to 16,999.97, 25,504.28 and 9,985.91 is: 14,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999.97 : 25,504.28 = 9,985.91 : x
  2. Step 2: Convert to fraction form
    16,999.97/25,504.28 = 9,985.91/x
  3. Step 3: Cross multiply
    16,999.97x = 25,504.28 × 9,985.91
  4. Step 4: Simplify right side
    16,999.97x = 254,683,483.49
  5. Step 5: Solve for x
    x = 254,683,483.49/16,999.97
  6. Step 6: Final answer
    x = 14,981.41

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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.