Home / 11,087.90-15,300.18-6,838.28

Finding the Fourth Proportional to 11,087.90, 15,300.18 and 6,838.28

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Solution

The fourth proportional to 11,087.90, 15,300.18 and 6,838.28 is: 9,436.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,087.90 : 15,300.18 = 6,838.28 : x
  2. Step 2: Convert to fraction form
    11,087.90/15,300.18 = 6,838.28/x
  3. Step 3: Cross multiply
    11,087.90x = 15,300.18 × 6,838.28
  4. Step 4: Simplify right side
    11,087.90x = 104,626,914.89
  5. Step 5: Solve for x
    x = 104,626,914.89/11,087.90
  6. Step 6: Final answer
    x = 9,436.13

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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.