Home / 12,707.28-17,544.80-9,717.91

Finding the Fourth Proportional to 12,707.28, 17,544.80 and 9,717.91

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Solution

The fourth proportional to 12,707.28, 17,544.80 and 9,717.91 is: 13,417.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.28 : 17,544.80 = 9,717.91 : x
  2. Step 2: Convert to fraction form
    12,707.28/17,544.80 = 9,717.91/x
  3. Step 3: Cross multiply
    12,707.28x = 17,544.80 × 9,717.91
  4. Step 4: Simplify right side
    12,707.28x = 170,498,787.37
  5. Step 5: Solve for x
    x = 170,498,787.37/12,707.28
  6. Step 6: Final answer
    x = 13,417.41

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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.