Home / 9,988.26-13,783.77-5,511.99

Finding the Fourth Proportional to 9,988.26, 13,783.77 and 5,511.99

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Solution

The fourth proportional to 9,988.26, 13,783.77 and 5,511.99 is: 7,606.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.26 : 13,783.77 = 5,511.99 : x
  2. Step 2: Convert to fraction form
    9,988.26/13,783.77 = 5,511.99/x
  3. Step 3: Cross multiply
    9,988.26x = 13,783.77 × 5,511.99
  4. Step 4: Simplify right side
    9,988.26x = 75,976,002.40
  5. Step 5: Solve for x
    x = 75,976,002.40/9,988.26
  6. Step 6: Final answer
    x = 7,606.53

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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.