Home / 13,970.08-20,955.30-4,109.57

Finding the Fourth Proportional to 13,970.08, 20,955.30 and 4,109.57

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Solution

The fourth proportional to 13,970.08, 20,955.30 and 4,109.57 is: 6,164.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.08 : 20,955.30 = 4,109.57 : x
  2. Step 2: Convert to fraction form
    13,970.08/20,955.30 = 4,109.57/x
  3. Step 3: Cross multiply
    13,970.08x = 20,955.30 × 4,109.57
  4. Step 4: Simplify right side
    13,970.08x = 86,117,272.22
  5. Step 5: Solve for x
    x = 86,117,272.22/13,970.08
  6. Step 6: Final answer
    x = 6,164.41

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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.