Home / 10,858.94-14,987.68-6,611.38

Finding the Fourth Proportional to 10,858.94, 14,987.68 and 6,611.38

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Solution

The fourth proportional to 10,858.94, 14,987.68 and 6,611.38 is: 9,125.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.94 : 14,987.68 = 6,611.38 : x
  2. Step 2: Convert to fraction form
    10,858.94/14,987.68 = 6,611.38/x
  3. Step 3: Cross multiply
    10,858.94x = 14,987.68 × 6,611.38
  4. Step 4: Simplify right side
    10,858.94x = 99,089,247.80
  5. Step 5: Solve for x
    x = 99,089,247.80/10,858.94
  6. Step 6: Final answer
    x = 9,125.13

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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.