Home / 13,216.86-18,239.34-7,248.54

Finding the Fourth Proportional to 13,216.86, 18,239.34 and 7,248.54

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Solution

The fourth proportional to 13,216.86, 18,239.34 and 7,248.54 is: 10,003.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.86 : 18,239.34 = 7,248.54 : x
  2. Step 2: Convert to fraction form
    13,216.86/18,239.34 = 7,248.54/x
  3. Step 3: Cross multiply
    13,216.86x = 18,239.34 × 7,248.54
  4. Step 4: Simplify right side
    13,216.86x = 132,208,681.14
  5. Step 5: Solve for x
    x = 132,208,681.14/13,216.86
  6. Step 6: Final answer
    x = 10,003.03

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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.