Home / 8,191.36-11,303.71-5,009.99

Finding the Fourth Proportional to 8,191.36, 11,303.71 and 5,009.99

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Solution

The fourth proportional to 8,191.36, 11,303.71 and 5,009.99 is: 6,913.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.36 : 11,303.71 = 5,009.99 : x
  2. Step 2: Convert to fraction form
    8,191.36/11,303.71 = 5,009.99/x
  3. Step 3: Cross multiply
    8,191.36x = 11,303.71 × 5,009.99
  4. Step 4: Simplify right side
    8,191.36x = 56,631,397.97
  5. Step 5: Solve for x
    x = 56,631,397.97/8,191.36
  6. Step 6: Final answer
    x = 6,913.55

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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.