Home / 12,610.04-18,915.24-5,213.68

Finding the Fourth Proportional to 12,610.04, 18,915.24 and 5,213.68

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Solution

The fourth proportional to 12,610.04, 18,915.24 and 5,213.68 is: 7,820.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.04 : 18,915.24 = 5,213.68 : x
  2. Step 2: Convert to fraction form
    12,610.04/18,915.24 = 5,213.68/x
  3. Step 3: Cross multiply
    12,610.04x = 18,915.24 × 5,213.68
  4. Step 4: Simplify right side
    12,610.04x = 98,618,008.48
  5. Step 5: Solve for x
    x = 98,618,008.48/12,610.04
  6. Step 6: Final answer
    x = 7,820.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.