Home / 15,840.92-21,862.79-9,125.26

Finding the Fourth Proportional to 15,840.92, 21,862.79 and 9,125.26

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Solution

The fourth proportional to 15,840.92, 21,862.79 and 9,125.26 is: 12,594.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,840.92 : 21,862.79 = 9,125.26 : x
  2. Step 2: Convert to fraction form
    15,840.92/21,862.79 = 9,125.26/x
  3. Step 3: Cross multiply
    15,840.92x = 21,862.79 × 9,125.26
  4. Step 4: Simplify right side
    15,840.92x = 199,503,488.14
  5. Step 5: Solve for x
    x = 199,503,488.14/15,840.92
  6. Step 6: Final answer
    x = 12,594.19

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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.