Home / 12,357.36-17,052.08-7,320.69

Finding the Fourth Proportional to 12,357.36, 17,052.08 and 7,320.69

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Solution

The fourth proportional to 12,357.36, 17,052.08 and 7,320.69 is: 10,101.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.36 : 17,052.08 = 7,320.69 : x
  2. Step 2: Convert to fraction form
    12,357.36/17,052.08 = 7,320.69/x
  3. Step 3: Cross multiply
    12,357.36x = 17,052.08 × 7,320.69
  4. Step 4: Simplify right side
    12,357.36x = 124,832,954.93
  5. Step 5: Solve for x
    x = 124,832,954.93/12,357.36
  6. Step 6: Final answer
    x = 10,101.91

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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.