Home / 12,330.48-18,500.37-7,403.56

Finding the Fourth Proportional to 12,330.48, 18,500.37 and 7,403.56

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Solution

The fourth proportional to 12,330.48, 18,500.37 and 7,403.56 is: 11,108.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,330.48 : 18,500.37 = 7,403.56 : x
  2. Step 2: Convert to fraction form
    12,330.48/18,500.37 = 7,403.56/x
  3. Step 3: Cross multiply
    12,330.48x = 18,500.37 × 7,403.56
  4. Step 4: Simplify right side
    12,330.48x = 136,968,599.32
  5. Step 5: Solve for x
    x = 136,968,599.32/12,330.48
  6. Step 6: Final answer
    x = 11,108.13

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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.