Home / 12,815.74-17,659.47-9,453.23

Finding the Fourth Proportional to 12,815.74, 17,659.47 and 9,453.23

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Solution

The fourth proportional to 12,815.74, 17,659.47 and 9,453.23 is: 13,026.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815.74 : 17,659.47 = 9,453.23 : x
  2. Step 2: Convert to fraction form
    12,815.74/17,659.47 = 9,453.23/x
  3. Step 3: Cross multiply
    12,815.74x = 17,659.47 × 9,453.23
  4. Step 4: Simplify right side
    12,815.74x = 166,938,943.29
  5. Step 5: Solve for x
    x = 166,938,943.29/12,815.74
  6. Step 6: Final answer
    x = 13,026.09

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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.