Home / 14,419.56-21,621.80-6,515.28

Finding the Fourth Proportional to 14,419.56, 21,621.80 and 6,515.28

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Solution

The fourth proportional to 14,419.56, 21,621.80 and 6,515.28 is: 9,769.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,419.56 : 21,621.80 = 6,515.28 : x
  2. Step 2: Convert to fraction form
    14,419.56/21,621.80 = 6,515.28/x
  3. Step 3: Cross multiply
    14,419.56x = 21,621.80 × 6,515.28
  4. Step 4: Simplify right side
    14,419.56x = 140,872,097.39
  5. Step 5: Solve for x
    x = 140,872,097.39/14,419.56
  6. Step 6: Final answer
    x = 9,769.51

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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.