Home / 9,084.40-13,612.20-7,615.60

Finding the Fourth Proportional to 9,084.40, 13,612.20 and 7,615.60

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Solution

The fourth proportional to 9,084.40, 13,612.20 and 7,615.60 is: 11,411.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,084.40 : 13,612.20 = 7,615.60 : x
  2. Step 2: Convert to fraction form
    9,084.40/13,612.20 = 7,615.60/x
  3. Step 3: Cross multiply
    9,084.40x = 13,612.20 × 7,615.60
  4. Step 4: Simplify right side
    9,084.40x = 103,665,070.32
  5. Step 5: Solve for x
    x = 103,665,070.32/9,084.40
  6. Step 6: Final answer
    x = 11,411.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.