Home / 14,270.31-21,405.06-5,507.12

Finding the Fourth Proportional to 14,270.31, 21,405.06 and 5,507.12

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Solution

The fourth proportional to 14,270.31, 21,405.06 and 5,507.12 is: 8,260.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,270.31 : 21,405.06 = 5,507.12 : x
  2. Step 2: Convert to fraction form
    14,270.31/21,405.06 = 5,507.12/x
  3. Step 3: Cross multiply
    14,270.31x = 21,405.06 × 5,507.12
  4. Step 4: Simplify right side
    14,270.31x = 117,880,287.54
  5. Step 5: Solve for x
    x = 117,880,287.54/14,270.31
  6. Step 6: Final answer
    x = 8,260.53

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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.