Home / 8,971.43-12,386.67-5,615.60

Finding the Fourth Proportional to 8,971.43, 12,386.67 and 5,615.60

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Solution

The fourth proportional to 8,971.43, 12,386.67 and 5,615.60 is: 7,753.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.43 : 12,386.67 = 5,615.60 : x
  2. Step 2: Convert to fraction form
    8,971.43/12,386.67 = 5,615.60/x
  3. Step 3: Cross multiply
    8,971.43x = 12,386.67 × 5,615.60
  4. Step 4: Simplify right side
    8,971.43x = 69,558,584.05
  5. Step 5: Solve for x
    x = 69,558,584.05/8,971.43
  6. Step 6: Final answer
    x = 7,753.34

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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.