Home / 13,532.79-18,676.20-8,817.07

Finding the Fourth Proportional to 13,532.79, 18,676.20 and 8,817.07

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Solution

The fourth proportional to 13,532.79, 18,676.20 and 8,817.07 is: 12,168.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,532.79 : 18,676.20 = 8,817.07 : x
  2. Step 2: Convert to fraction form
    13,532.79/18,676.20 = 8,817.07/x
  3. Step 3: Cross multiply
    13,532.79x = 18,676.20 × 8,817.07
  4. Step 4: Simplify right side
    13,532.79x = 164,669,384.13
  5. Step 5: Solve for x
    x = 164,669,384.13/13,532.79
  6. Step 6: Final answer
    x = 12,168.18

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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.