Home / 12,588.07-17,369.60-7,281.87

Finding the Fourth Proportional to 12,588.07, 17,369.60 and 7,281.87

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Solution

The fourth proportional to 12,588.07, 17,369.60 and 7,281.87 is: 10,047.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.07 : 17,369.60 = 7,281.87 : x
  2. Step 2: Convert to fraction form
    12,588.07/17,369.60 = 7,281.87/x
  3. Step 3: Cross multiply
    12,588.07x = 17,369.60 × 7,281.87
  4. Step 4: Simplify right side
    12,588.07x = 126,483,169.15
  5. Step 5: Solve for x
    x = 126,483,169.15/12,588.07
  6. Step 6: Final answer
    x = 10,047.86

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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.