Home / 7,988.36-11,020.74-4,843.40

Finding the Fourth Proportional to 7,988.36, 11,020.74 and 4,843.40

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Solution

The fourth proportional to 7,988.36, 11,020.74 and 4,843.40 is: 6,681.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.36 : 11,020.74 = 4,843.40 : x
  2. Step 2: Convert to fraction form
    7,988.36/11,020.74 = 4,843.40/x
  3. Step 3: Cross multiply
    7,988.36x = 11,020.74 × 4,843.40
  4. Step 4: Simplify right side
    7,988.36x = 53,377,852.12
  5. Step 5: Solve for x
    x = 53,377,852.12/7,988.36
  6. Step 6: Final answer
    x = 6,681.95

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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.