Home / 12,588.48-17,373.60-7,212.84

Finding the Fourth Proportional to 12,588.48, 17,373.60 and 7,212.84

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Solution

The fourth proportional to 12,588.48, 17,373.60 and 7,212.84 is: 9,954.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.48 : 17,373.60 = 7,212.84 : x
  2. Step 2: Convert to fraction form
    12,588.48/17,373.60 = 7,212.84/x
  3. Step 3: Cross multiply
    12,588.48x = 17,373.60 × 7,212.84
  4. Step 4: Simplify right side
    12,588.48x = 125,312,997.02
  5. Step 5: Solve for x
    x = 125,312,997.02/12,588.48
  6. Step 6: Final answer
    x = 9,954.58

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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.