Home / 15,461.46-21,329.73-9,171.54

Finding the Fourth Proportional to 15,461.46, 21,329.73 and 9,171.54

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Solution

The fourth proportional to 15,461.46, 21,329.73 and 9,171.54 is: 12,652.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,461.46 : 21,329.73 = 9,171.54 : x
  2. Step 2: Convert to fraction form
    15,461.46/21,329.73 = 9,171.54/x
  3. Step 3: Cross multiply
    15,461.46x = 21,329.73 × 9,171.54
  4. Step 4: Simplify right side
    15,461.46x = 195,626,471.88
  5. Step 5: Solve for x
    x = 195,626,471.88/15,461.46
  6. Step 6: Final answer
    x = 12,652.52

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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.