Home / 12,634.45-17,430.19-9,271.46

Finding the Fourth Proportional to 12,634.45, 17,430.19 and 9,271.46

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Solution

The fourth proportional to 12,634.45, 17,430.19 and 9,271.46 is: 12,790.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.45 : 17,430.19 = 9,271.46 : x
  2. Step 2: Convert to fraction form
    12,634.45/17,430.19 = 9,271.46/x
  3. Step 3: Cross multiply
    12,634.45x = 17,430.19 × 9,271.46
  4. Step 4: Simplify right side
    12,634.45x = 161,603,329.77
  5. Step 5: Solve for x
    x = 161,603,329.77/12,634.45
  6. Step 6: Final answer
    x = 12,790.69

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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.