Home / 17,678.13-24,396.30-9,720.57

Finding the Fourth Proportional to 17,678.13, 24,396.30 and 9,720.57

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Solution

The fourth proportional to 17,678.13, 24,396.30 and 9,720.57 is: 13,414.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,678.13 : 24,396.30 = 9,720.57 : x
  2. Step 2: Convert to fraction form
    17,678.13/24,396.30 = 9,720.57/x
  3. Step 3: Cross multiply
    17,678.13x = 24,396.30 × 9,720.57
  4. Step 4: Simplify right side
    17,678.13x = 237,145,941.89
  5. Step 5: Solve for x
    x = 237,145,941.89/17,678.13
  6. Step 6: Final answer
    x = 13,414.65

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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.