Home / 12,607.24-18,911.10-5,212.60

Finding the Fourth Proportional to 12,607.24, 18,911.10 and 5,212.60

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Solution

The fourth proportional to 12,607.24, 18,911.10 and 5,212.60 is: 7,819.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.24 : 18,911.10 = 5,212.60 : x
  2. Step 2: Convert to fraction form
    12,607.24/18,911.10 = 5,212.60/x
  3. Step 3: Cross multiply
    12,607.24x = 18,911.10 × 5,212.60
  4. Step 4: Simplify right side
    12,607.24x = 98,575,999.86
  5. Step 5: Solve for x
    x = 98,575,999.86/12,607.24
  6. Step 6: Final answer
    x = 7,819.00

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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.