Home / 15,407.94-21,262.32-9,745.77

Finding the Fourth Proportional to 15,407.94, 21,262.32 and 9,745.77

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Solution

The fourth proportional to 15,407.94, 21,262.32 and 9,745.77 is: 13,448.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.94 : 21,262.32 = 9,745.77 : x
  2. Step 2: Convert to fraction form
    15,407.94/21,262.32 = 9,745.77/x
  3. Step 3: Cross multiply
    15,407.94x = 21,262.32 × 9,745.77
  4. Step 4: Simplify right side
    15,407.94x = 207,217,680.39
  5. Step 5: Solve for x
    x = 207,217,680.39/15,407.94
  6. Step 6: Final answer
    x = 13,448.76

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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.