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Finding the Fourth Proportional to 13,999.51, 20,995.62 and 6,602.01

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Solution

The fourth proportional to 13,999.51, 20,995.62 and 6,602.01 is: 9,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.51 : 20,995.62 = 6,602.01 : x
  2. Step 2: Convert to fraction form
    13,999.51/20,995.62 = 6,602.01/x
  3. Step 3: Cross multiply
    13,999.51x = 20,995.62 × 6,602.01
  4. Step 4: Simplify right side
    13,999.51x = 138,613,293.20
  5. Step 5: Solve for x
    x = 138,613,293.20/13,999.51
  6. Step 6: Final answer
    x = 9,901.30

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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.