Home / 10,353.79-14,272.10-8,672.23

Finding the Fourth Proportional to 10,353.79, 14,272.10 and 8,672.23

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Solution

The fourth proportional to 10,353.79, 14,272.10 and 8,672.23 is: 11,954.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,353.79 : 14,272.10 = 8,672.23 : x
  2. Step 2: Convert to fraction form
    10,353.79/14,272.10 = 8,672.23/x
  3. Step 3: Cross multiply
    10,353.79x = 14,272.10 × 8,672.23
  4. Step 4: Simplify right side
    10,353.79x = 123,770,890.42
  5. Step 5: Solve for x
    x = 123,770,890.42/10,353.79
  6. Step 6: Final answer
    x = 11,954.16

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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.