Home / 12,722.13-17,558.60-7,415.93

Finding the Fourth Proportional to 12,722.13, 17,558.60 and 7,415.93

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Solution

The fourth proportional to 12,722.13, 17,558.60 and 7,415.93 is: 10,235.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.13 : 17,558.60 = 7,415.93 : x
  2. Step 2: Convert to fraction form
    12,722.13/17,558.60 = 7,415.93/x
  3. Step 3: Cross multiply
    12,722.13x = 17,558.60 × 7,415.93
  4. Step 4: Simplify right side
    12,722.13x = 130,213,348.50
  5. Step 5: Solve for x
    x = 130,213,348.50/12,722.13
  6. Step 6: Final answer
    x = 10,235.18

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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.