Home / 12,490.89-17,237.22-6,825.52

Finding the Fourth Proportional to 12,490.89, 17,237.22 and 6,825.52

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Solution

The fourth proportional to 12,490.89, 17,237.22 and 6,825.52 is: 9,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490.89 : 17,237.22 = 6,825.52 : x
  2. Step 2: Convert to fraction form
    12,490.89/17,237.22 = 6,825.52/x
  3. Step 3: Cross multiply
    12,490.89x = 17,237.22 × 6,825.52
  4. Step 4: Simplify right side
    12,490.89x = 117,652,903.67
  5. Step 5: Solve for x
    x = 117,652,903.67/12,490.89
  6. Step 6: Final answer
    x = 9,419.10

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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.