Home / 12,492.72-17,239.32-6,902.64

Finding the Fourth Proportional to 12,492.72, 17,239.32 and 6,902.64

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Solution

The fourth proportional to 12,492.72, 17,239.32 and 6,902.64 is: 9,525.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.72 : 17,239.32 = 6,902.64 : x
  2. Step 2: Convert to fraction form
    12,492.72/17,239.32 = 6,902.64/x
  3. Step 3: Cross multiply
    12,492.72x = 17,239.32 × 6,902.64
  4. Step 4: Simplify right side
    12,492.72x = 118,996,819.80
  5. Step 5: Solve for x
    x = 118,996,819.80/12,492.72
  6. Step 6: Final answer
    x = 9,525.29

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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.