Home / 8,928.12-13,392.22-2,688.16

Finding the Fourth Proportional to 8,928.12, 13,392.22 and 2,688.16

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Solution

The fourth proportional to 8,928.12, 13,392.22 and 2,688.16 is: 4,032.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.12 : 13,392.22 = 2,688.16 : x
  2. Step 2: Convert to fraction form
    8,928.12/13,392.22 = 2,688.16/x
  3. Step 3: Cross multiply
    8,928.12x = 13,392.22 × 2,688.16
  4. Step 4: Simplify right side
    8,928.12x = 36,000,430.12
  5. Step 5: Solve for x
    x = 36,000,430.12/8,928.12
  6. Step 6: Final answer
    x = 4,032.25

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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.