Home / 8,913.60-13,344.48-6,615.36

Finding the Fourth Proportional to 8,913.60, 13,344.48 and 6,615.36

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Solution

The fourth proportional to 8,913.60, 13,344.48 and 6,615.36 is: 9,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.60 : 13,344.48 = 6,615.36 : x
  2. Step 2: Convert to fraction form
    8,913.60/13,344.48 = 6,615.36/x
  3. Step 3: Cross multiply
    8,913.60x = 13,344.48 × 6,615.36
  4. Step 4: Simplify right side
    8,913.60x = 88,278,539.21
  5. Step 5: Solve for x
    x = 88,278,539.21/8,913.60
  6. Step 6: Final answer
    x = 9,903.80

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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.