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Finding the Fourth Proportional to 17,955.70, 24,779.93 and 9,997.70

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Solution

The fourth proportional to 17,955.70, 24,779.93 and 9,997.70 is: 13,797.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,955.70 : 24,779.93 = 9,997.70 : x
  2. Step 2: Convert to fraction form
    17,955.70/24,779.93 = 9,997.70/x
  3. Step 3: Cross multiply
    17,955.70x = 24,779.93 × 9,997.70
  4. Step 4: Simplify right side
    17,955.70x = 247,742,306.16
  5. Step 5: Solve for x
    x = 247,742,306.16/17,955.70
  6. Step 6: Final answer
    x = 13,797.42

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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.