Home / 12,122.46-16,710.93-7,403.58

Finding the Fourth Proportional to 12,122.46, 16,710.93 and 7,403.58

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Solution

The fourth proportional to 12,122.46, 16,710.93 and 7,403.58 is: 10,205.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.46 : 16,710.93 = 7,403.58 : x
  2. Step 2: Convert to fraction form
    12,122.46/16,710.93 = 7,403.58/x
  3. Step 3: Cross multiply
    12,122.46x = 16,710.93 × 7,403.58
  4. Step 4: Simplify right side
    12,122.46x = 123,720,707.13
  5. Step 5: Solve for x
    x = 123,720,707.13/12,122.46
  6. Step 6: Final answer
    x = 10,205.91

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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.