Home / 10,312.22-15,469.54-7,731.56

Finding the Fourth Proportional to 10,312.22, 15,469.54 and 7,731.56

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Solution

The fourth proportional to 10,312.22, 15,469.54 and 7,731.56 is: 11,598.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,312.22 : 15,469.54 = 7,731.56 : x
  2. Step 2: Convert to fraction form
    10,312.22/15,469.54 = 7,731.56/x
  3. Step 3: Cross multiply
    10,312.22x = 15,469.54 × 7,731.56
  4. Step 4: Simplify right side
    10,312.22x = 119,603,676.68
  5. Step 5: Solve for x
    x = 119,603,676.68/10,312.22
  6. Step 6: Final answer
    x = 11,598.25

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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.