Home / 12,988.06-19,484.51-5,197.48

Finding the Fourth Proportional to 12,988.06, 19,484.51 and 5,197.48

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Solution

The fourth proportional to 12,988.06, 19,484.51 and 5,197.48 is: 7,797.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,988.06 : 19,484.51 = 5,197.48 : x
  2. Step 2: Convert to fraction form
    12,988.06/19,484.51 = 5,197.48/x
  3. Step 3: Cross multiply
    12,988.06x = 19,484.51 × 5,197.48
  4. Step 4: Simplify right side
    12,988.06x = 101,270,351.03
  5. Step 5: Solve for x
    x = 101,270,351.03/12,988.06
  6. Step 6: Final answer
    x = 7,797.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.