Home / 8,435.22-11,643.89-7,549.49

Finding the Fourth Proportional to 8,435.22, 11,643.89 and 7,549.49

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Solution

The fourth proportional to 8,435.22, 11,643.89 and 7,549.49 is: 10,421.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.22 : 11,643.89 = 7,549.49 : x
  2. Step 2: Convert to fraction form
    8,435.22/11,643.89 = 7,549.49/x
  3. Step 3: Cross multiply
    8,435.22x = 11,643.89 × 7,549.49
  4. Step 4: Simplify right side
    8,435.22x = 87,905,335.15
  5. Step 5: Solve for x
    x = 87,905,335.15/8,435.22
  6. Step 6: Final answer
    x = 10,421.23

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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.