Home / 13,970.34-20,955.08-4,109.81

Finding the Fourth Proportional to 13,970.34, 20,955.08 and 4,109.81

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Solution

The fourth proportional to 13,970.34, 20,955.08 and 4,109.81 is: 6,164.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.34 : 20,955.08 = 4,109.81 : x
  2. Step 2: Convert to fraction form
    13,970.34/20,955.08 = 4,109.81/x
  3. Step 3: Cross multiply
    13,970.34x = 20,955.08 × 4,109.81
  4. Step 4: Simplify right side
    13,970.34x = 86,121,302.83
  5. Step 5: Solve for x
    x = 86,121,302.83/13,970.34
  6. Step 6: Final answer
    x = 6,164.58

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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.