Home / 12,490.86-17,237.58-6,825.72

Finding the Fourth Proportional to 12,490.86, 17,237.58 and 6,825.72

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Solution

The fourth proportional to 12,490.86, 17,237.58 and 6,825.72 is: 9,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490.86 : 17,237.58 = 6,825.72 : x
  2. Step 2: Convert to fraction form
    12,490.86/17,237.58 = 6,825.72/x
  3. Step 3: Cross multiply
    12,490.86x = 17,237.58 × 6,825.72
  4. Step 4: Simplify right side
    12,490.86x = 117,658,894.56
  5. Step 5: Solve for x
    x = 117,658,894.56/12,490.86
  6. Step 6: Final answer
    x = 9,419.60

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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.