Home / 13,167.72-18,153-8,968.68

Finding the Fourth Proportional to 13,167.72, 18,153 and 8,968.68

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Solution

The fourth proportional to 13,167.72, 18,153 and 8,968.68 is: 12,364.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167.72 : 18,153 = 8,968.68 : x
  2. Step 2: Convert to fraction form
    13,167.72/18,153 = 8,968.68/x
  3. Step 3: Cross multiply
    13,167.72x = 18,153 × 8,968.68
  4. Step 4: Simplify right side
    13,167.72x = 162,808,448.04
  5. Step 5: Solve for x
    x = 162,808,448.04/13,167.72
  6. Step 6: Final answer
    x = 12,364.21

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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.