Home / 15,343.89-21,174.78-9,056.26

Finding the Fourth Proportional to 15,343.89, 21,174.78 and 9,056.26

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Solution

The fourth proportional to 15,343.89, 21,174.78 and 9,056.26 is: 12,497.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.89 : 21,174.78 = 9,056.26 : x
  2. Step 2: Convert to fraction form
    15,343.89/21,174.78 = 9,056.26/x
  3. Step 3: Cross multiply
    15,343.89x = 21,174.78 × 9,056.26
  4. Step 4: Simplify right side
    15,343.89x = 191,764,313.12
  5. Step 5: Solve for x
    x = 191,764,313.12/15,343.89
  6. Step 6: Final answer
    x = 12,497.76

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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.