Home / 8,386.56-11,571.08-5,403.44

Finding the Fourth Proportional to 8,386.56, 11,571.08 and 5,403.44

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Solution

The fourth proportional to 8,386.56, 11,571.08 and 5,403.44 is: 7,455.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.56 : 11,571.08 = 5,403.44 : x
  2. Step 2: Convert to fraction form
    8,386.56/11,571.08 = 5,403.44/x
  3. Step 3: Cross multiply
    8,386.56x = 11,571.08 × 5,403.44
  4. Step 4: Simplify right side
    8,386.56x = 62,523,636.52
  5. Step 5: Solve for x
    x = 62,523,636.52/8,386.56
  6. Step 6: Final answer
    x = 7,455.22

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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.