Home / 13,650.09-18,837.06-7,681.86

Finding the Fourth Proportional to 13,650.09, 18,837.06 and 7,681.86

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Solution

The fourth proportional to 13,650.09, 18,837.06 and 7,681.86 is: 10,600.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.09 : 18,837.06 = 7,681.86 : x
  2. Step 2: Convert to fraction form
    13,650.09/18,837.06 = 7,681.86/x
  3. Step 3: Cross multiply
    13,650.09x = 18,837.06 × 7,681.86
  4. Step 4: Simplify right side
    13,650.09x = 144,703,657.73
  5. Step 5: Solve for x
    x = 144,703,657.73/13,650.09
  6. Step 6: Final answer
    x = 10,600.93

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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.