Home / 14,507.64-20,017.80-13,769.46

Finding the Fourth Proportional to 14,507.64, 20,017.80 and 13,769.46

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Solution

The fourth proportional to 14,507.64, 20,017.80 and 13,769.46 is: 18,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,507.64 : 20,017.80 = 13,769.46 : x
  2. Step 2: Convert to fraction form
    14,507.64/20,017.80 = 13,769.46/x
  3. Step 3: Cross multiply
    14,507.64x = 20,017.80 × 13,769.46
  4. Step 4: Simplify right side
    14,507.64x = 275,634,296.39
  5. Step 5: Solve for x
    x = 275,634,296.39/14,507.64
  6. Step 6: Final answer
    x = 18,999.25

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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.