Home / 13,999.64-21,001.34-4,636.58

Finding the Fourth Proportional to 13,999.64, 21,001.34 and 4,636.58

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Solution

The fourth proportional to 13,999.64, 21,001.34 and 4,636.58 is: 6,955.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.64 : 21,001.34 = 4,636.58 : x
  2. Step 2: Convert to fraction form
    13,999.64/21,001.34 = 4,636.58/x
  3. Step 3: Cross multiply
    13,999.64x = 21,001.34 × 4,636.58
  4. Step 4: Simplify right side
    13,999.64x = 97,374,299.60
  5. Step 5: Solve for x
    x = 97,374,299.60/13,999.64
  6. Step 6: Final answer
    x = 6,955.49

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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.