Home / 11,119.80-16,681.73-5,276.36

Finding the Fourth Proportional to 11,119.80, 16,681.73 and 5,276.36

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Solution

The fourth proportional to 11,119.80, 16,681.73 and 5,276.36 is: 7,915.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.80 : 16,681.73 = 5,276.36 : x
  2. Step 2: Convert to fraction form
    11,119.80/16,681.73 = 5,276.36/x
  3. Step 3: Cross multiply
    11,119.80x = 16,681.73 × 5,276.36
  4. Step 4: Simplify right side
    11,119.80x = 88,018,812.90
  5. Step 5: Solve for x
    x = 88,018,812.90/11,119.80
  6. Step 6: Final answer
    x = 7,915.50

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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.