Home / 13,617.96-18,787.92-8,582.64

Finding the Fourth Proportional to 13,617.96, 18,787.92 and 8,582.64

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Solution

The fourth proportional to 13,617.96, 18,787.92 and 8,582.64 is: 11,840.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.96 : 18,787.92 = 8,582.64 : x
  2. Step 2: Convert to fraction form
    13,617.96/18,787.92 = 8,582.64/x
  3. Step 3: Cross multiply
    13,617.96x = 18,787.92 × 8,582.64
  4. Step 4: Simplify right side
    13,617.96x = 161,249,953.71
  5. Step 5: Solve for x
    x = 161,249,953.71/13,617.96
  6. Step 6: Final answer
    x = 11,840.98

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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.