Home / 10,678.26-16,013.30-7,381.36

Finding the Fourth Proportional to 10,678.26, 16,013.30 and 7,381.36

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Solution

The fourth proportional to 10,678.26, 16,013.30 and 7,381.36 is: 11,069.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.26 : 16,013.30 = 7,381.36 : x
  2. Step 2: Convert to fraction form
    10,678.26/16,013.30 = 7,381.36/x
  3. Step 3: Cross multiply
    10,678.26x = 16,013.30 × 7,381.36
  4. Step 4: Simplify right side
    10,678.26x = 118,199,915.20
  5. Step 5: Solve for x
    x = 118,199,915.20/10,678.26
  6. Step 6: Final answer
    x = 11,069.21

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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.