Home / 16,985.13-23,439.11-9,431.03

Finding the Fourth Proportional to 16,985.13, 23,439.11 and 9,431.03

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Solution

The fourth proportional to 16,985.13, 23,439.11 and 9,431.03 is: 13,014.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,985.13 : 23,439.11 = 9,431.03 : x
  2. Step 2: Convert to fraction form
    16,985.13/23,439.11 = 9,431.03/x
  3. Step 3: Cross multiply
    16,985.13x = 23,439.11 × 9,431.03
  4. Step 4: Simplify right side
    16,985.13x = 221,054,961.03
  5. Step 5: Solve for x
    x = 221,054,961.03/16,985.13
  6. Step 6: Final answer
    x = 13,014.62

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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.