Home / 13,887.23-20,804.69-6,859.02

Finding the Fourth Proportional to 13,887.23, 20,804.69 and 6,859.02

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Solution

The fourth proportional to 13,887.23, 20,804.69 and 6,859.02 is: 10,275.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.23 : 20,804.69 = 6,859.02 : x
  2. Step 2: Convert to fraction form
    13,887.23/20,804.69 = 6,859.02/x
  3. Step 3: Cross multiply
    13,887.23x = 20,804.69 × 6,859.02
  4. Step 4: Simplify right side
    13,887.23x = 142,699,750.51
  5. Step 5: Solve for x
    x = 142,699,750.51/13,887.23
  6. Step 6: Final answer
    x = 10,275.61

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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.