Home / 10,620.09-14,655.74-5,905.29

Finding the Fourth Proportional to 10,620.09, 14,655.74 and 5,905.29

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Solution

The fourth proportional to 10,620.09, 14,655.74 and 5,905.29 is: 8,149.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.09 : 14,655.74 = 5,905.29 : x
  2. Step 2: Convert to fraction form
    10,620.09/14,655.74 = 5,905.29/x
  3. Step 3: Cross multiply
    10,620.09x = 14,655.74 × 5,905.29
  4. Step 4: Simplify right side
    10,620.09x = 86,546,365.34
  5. Step 5: Solve for x
    x = 86,546,365.34/10,620.09
  6. Step 6: Final answer
    x = 8,149.31

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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.